Rewrite the equation in vertex form. Select a few x x values, and plug them into the equation to find the corresponding y y values. quadratic-equation-calculator. Limits. Related Calculators.00/month. Complete the square for x2 −2x−8 x 2 - 2 x - 8.1. In such case the quadratic Therefore the zeroes of the polynomial x 2 - 2x - 8 are {4, 2} Relationship between the zeroes and the coefficients of the polynomial. Tap for more steps x = 8 −2 x = 8 - 2. Tap for more steps x = 2 and ( -4) Step-by-step explanation: We have to find the zero factors of the given equation . Isolate the variable, and solve for the variable by undoing any arithmetic Graph y=x^2-2x-2. Limits. Therefore, x 2 - 2x - 8 can be written as x 2 - 4x + 2x - 8. Solve your math problems using our free math solver with step-by-step solutions. for pricing and availability. Step 3. Solve an equation, inequality or a system. The solutions are found using the formula. Tap for more steps Direction: Opens Up Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1 Directrix: y = −37 4 y = - 37 4 Select a few x x values, and plug them into the equation to find the corresponding y y values. y = x² + 2x - 8. Multiply by . a = 1 a = 1. Show more.snoitulos pets-yb-pets htiw revlos htam eerf ruo gnisu smelborp htam ruoy evloS stimiL noitargetnI noitaitnereffiD noitauqe suoenatlumiS xirtaM citemhtirA ni ngiS !koobetoN ot evaS eroM daeR ssecorp eht si gnirotcaF . x2 + 2x = 8 x 2 + 2 x = 8. To find a and b, set up a system to be solved. The solutions for the equation are color (blue) (x=2 , color (blue) (x=-4 x^2 + 2x - 8 = 0 We can Split the Middle Term of this x2 − 2x − 8 > 0 x 2 - 2 x - 8 > 0. Factor algebraic expressions step-by-step. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. Related Symbolab blog posts. Step 1.2. Find the Domain and Range f (x)=x^2-2x-8. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. The system below represents the situation: c=4s c+s=30. Since a+b is negative, the negative number has greater absolute value than the positive. y = x2 − 2x − 8 y = x 2 - 2 x - 8. Differentiation. 3. That is +. 2x2 + 16x 2 x 2 + 16 x. Math notebooks have been around for hundreds of years. Step 1. Related Symbolab blog posts. Get all the terms with the wanted variable on one side of the equation and all the other terms on the other side. The minimum of a quadratic function occurs at x = − b 2a x = - b 2 a. (b 2)2 = (1)2 ( b 2) 2 = ( 1) 2 Add the term to each side of the equation. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a.4. Add 8 to both sides. A store sold 4 times more chocolate bars than Skittles. The complete solution is the result of both the positive and negative portions of the solution. x2+2x+2 Final result : x2 + 2x + 2 Step by step solution : Step 1 :Trying to factor by splitting the middle term 1. Tap for more steps x = 2,−4 x = 2, - 4. Set x2 −2x− 8 x 2 - 2 x - 8 equal to 0 0. x^{3}-6x^{2}+4x+8x-8 . Linear equation.3. Find the Roots (Zeros) y=x^2-2x-8. 2 View solution steps Evaluate. Vertex form of equation is y =(x-1)^2 +7 y=x^2-2x+8 or y=(x^2-2x+1)-1+8 or y=(x-1)^2 +7 Comparing with vertex form of equation f(x) = a(x-h)^2+k ; (h,k) being vertex we find here h=1 , k=7, a=1 :. x^{2}-2x-8. x2 − 2⋅x⋅1+12 x 2 - 2 ⋅ x ⋅ 1 + 1 2. Rewrite the equation in vertex form. The simplify calculator will then show you the steps to help you learn how to simplify your algebraic expression on your own. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b b. Step 1.1. This step makes the left hand side of the equation a perfect square. Explanation: To find the factors of x 2 - 2x - 8 we need to split the middle term i. Set equal to and solve for . A polynomial is a mathematical expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, and multiplication. Simplify.3. 2±√(−2)2 −4 ⋅(1⋅−8) 2⋅1 2 How to simplify your expression. Related Symbolab blog posts. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. Enter a problem Cooking Calculators. Practice Makes Perfect. To simplify your expression using the Simplify Calculator, type in your expression like 2 (5x+4)-3x.1.4142 Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : x2=4x-4 One solution was found : x = 2 Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from This is not factorable normally. Enter a problem Cooking Calculators. Step 3. en. Precalculus.4. Factoring is the process Read More.2. Adding 1 to this produces #x^2-2x+2#, and raises the graph of #y = x^2-2x+1# one upwards, meaning it no longer touches the x-axis, so it has no real roots. Integration. a = 1 a = 1. x^{3}-6x^{2}+12x-8 . 2x^{2} en. en. en. x + 4 = 0. Then add the square of 1 to both sides of the equation. Just like numbers have factors (2×3=6), expressions have factors ((x+2)(x+3)=x^2+5x+6). Enter a problem Cooking Calculators. The value at is . Tap for more steps (x−2)(x+ 4) = 0 ( x - 2) ( x + 4) = 0 If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal to 0 0. Step 1. x2 − 2x = 8 x 2 - 2 x = 8. Each new topic we learn has symbols and problems we have never seen. Nothing further can be done with this topic. Free math problem solver answers your algebra homework questions with step-by-step explanations. Step 3. Model # 2P020810S4. In this case, whose … x^{2}-2x-8. High School Math Solutions - Quadratic Equations Calculator, Part 2. The simplify calculator will then show you the steps to help you learn how to simplify your algebraic expression on your own. x2 + 2x−8 = 0 x 2 + 2 x - 8 = 0. Step 2. Factor algebraic expressions step-by-step. x2 − 2x − 8 = 0 x 2 - 2 x - 8 = 0. Since ab is negative, a and b have the opposite signs. Next divide by 3 on both sides to get x= 310.1 Pull out like factors : 4x - 8 = 4 • (x - 2) Equation at the end To factor x^2 + 2x - 8 follow these steps. x = ±√8 x = ± 8. 2x−8 2 x - 8. After you enter the expression, Algebra Calculator will plug x=6 in for the equation 2x+3=15: 2(6)+3 = 15. N 1 + N 2 = b = − 2. x^{2}+2x=y+8 . Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k. You should test that when x >1 (note the strict inequality here) the derivative is positive.1 Factoring Simplify 2x (x+8) 2x(x + 8) 2 x ( x + 8) Apply the distributive property. Factor 2 x2+3 xy. Is there a step by step calculator for physics? Steps Using the Quadratic Formula Steps for Completing the Square View solution steps Graph Graph Both Sides in 2D Graph in 2D Quiz Polynomial 5 problems similar to: Similar Problems from Web Search Share Examples Quadratic equation Trigonometry Linear equation Arithmetic Matrix Factor x^2+2x-8 Pre Calculus Calculus Statistics Go Examples Related Symbolab blog posts Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics Just like numbers have factors (2×3=6), expressions have factors ( (x+2) (x+3)=x^2+5x+6).1. List all such … How to simplify your expression. If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal Factor 15x^2-2x-8. Set y y equal to the new right side. x = 2.25-in x 16. Two numbers r and s sum up to 3 exactly when the average of the two numbers is \frac{1}{2}*3 = \frac{3}{2}.erauqs tcefrep a noitauqe eht fo edis dnah tfel eht sekam pets sihT . Check that the middle term is two times the product of the numbers being squared in the first term and third term. 1,-8 2,-4 . Solve. y=8-x2+}2{^x … si tI . Graph y=2x-8. Example 1.2. Frequently Asked Questions (FAQ) To factor a trinomial x^2+bx+c find two numbers u, v that multiply to give c and add to b. Simplify the right side. Rewrite x^{2}+2x-8 as \left(x^{2}-2x\right)+\left(4x-8\right). We know that if α and β are the two root of the quadratic equation a x 2 + b x + c, then α + β = - b a and α β = c a. Just like numbers have factors (2×3=6), expressions … x 2-2x = 8 Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1 Add 1 to both sides of the equation : On the right hand side … Algebra. Interval Notation: Explanation: 2x2 = 9x−4 -2x2=-4 Two solutions were found : x = ± √2 = ± 1. Wood Species: Southern yellow pine. 运用二次公式的步骤. Factor out of .11. factor x^{2}+2x-8. Since a+b is positive, the positive number has greater absolute value than the negative. Take the specified root of both sides of the equation to eliminate the exponent on the left side. Tap for more steps Answer: x = 2 and ( -4) Step-by-step explanation: We have to find the zero factors of the given equation . x^{2}+2x-8=0. Substitute the values a = 1 a = 1, b = −2 b = - 2, and c = −5 c = - 5 into the quadratic formula and solve for x x. Tap for Factor x^{2}+2x-8. Tap for more steps Step 1. Related Symbolab blog posts. for zero factor we will put y = 0. whats 22 X 22 and whats 44 X 44 ? Which model shows the correct factorization of x^2 + 2x Two numbers r and s sum up to -2 exactly when the average of the two numbers is \frac{1}{2}*-2 = -1. Tap for more steps x-intercept (s): (4,0),(−2,0) ( 4, 0), ( - 2, 0) Find the y-intercepts. x−2 = 0 x - 2 = 0 x+4 = 0 x + 4 = 0 x^{2}+2x-8=y . x2 − 2x + 1 x 2 - 2 x + 1.3. The x x values should be selected around the vertex. The factor common to each term is x. Step 5. Write the factored form using these integers.e y = 8 for x-intercepts, y = 0 , so x^2 + 2x - 8 = 0 i. Enter a problem Cooking Calculators. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a. Tap for more steps x2 − 6x−16 x 2 - 6 x - 16. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. Tap for more steps y = (x− 1)2 −9 y = ( x - 1) 2 - 9. Solve your math problems using our free math solver with step-by-step solutions. Step 3. Here's is the explanation to factorise x 2 - 2x - 8. en. \sqrt{\left(x+1\right)^{2}}=\sqrt{1} Take the square root of both sides of the equation. Type in any equation to get the solution, steps and graph Solve by Completing the Square x^2+2x=8. Solve by Factoring x^2-2x=0. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Rewrite the equation in vertex form.e (x - 2) (x + 4) = 0 thus x = 2 or x = - 4. Polynomials are often written in the form: a₀ + a₁x + a₂x² + a₃x³ + + aₙxⁿ, where the a's are coefficients and x is the variable. Substitute the values , , and into the quadratic formula and solve for . However, we can find its imaginary roots like this: #x^2-2x+2# The inverse of f (x)= x2 −2x−8 is (XXX)f (x)= 1 ± x+9 which is not a For monotonicity (increasing at least) we need the derivative positive everywhere. Solve your math problems using our free math solver with step-by-step solutions. y = (x− 1)2 −9 y = ( x - 1) 2 - 9. Please check the expression entered or try another topic. Polynomial. Since a+b is negative, the negative number has greater absolute value than the positive. Algebra.2. en. Divide each term in −2x = 8 - 2 x = 8 by −2 - 2. en. Set x2 +2x− 8 x 2 + 2 x - 8 equal to 0 0. polynomial-equation-calculator. Step 2. Enter a problem Cooking Calculators. Starting at $5. x^{2}-2x-8=0. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Factor x^2+x-8. Q5 are the factors of the polynomial x 2 + 2 x Solve Using the Quadratic Formula x^2-2x-8=0. Solve. Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k. 2x = 2⋅x ⋅1 2 x = 2 ⋅ x ⋅ 1. Find the x and y Intercepts f (x)=x^2-2x-8.4. Add 8 to both side of the equation : x2-2x = 8. After trying out a few numbers we get N 1 = −4 and N 2 = 2.1 x 3 +x 2-2x-8 is not a perfect cube . Product of the zeroes = `(` Also product of the zeroes = … y=x^{2}+2x-8. In this case, there is no real number that makes the expression undefined. The value at is . On the last post we covered completing the square (see link). You write down problems, solutions and notes to go back Read More. x2 − 2x = 0 x 2 - 2 x = 0. Tap for more steps Slope: 2 2. Linear equation. We can Split the Middle Term of this expression to factorise it. On taking 'x' common from first two terms and 2 from next two terms we get. Rewrite as . = (2)2 − (4 ⋅ 1 ⋅ ( −8)) = 4 + 32 = 36. −2x −2 = 8 −2 - 2 x - 2 = 8 - 2. Interval Notation: The perfect square rule is a technique used to expand expressions that are the sum or difference of two squares, such as (a + b)^2 or (a - b)^2. Free math problem solver answers your algebra homework questions with step-by-step explanations.8. Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1. Solve for x x. −4,2 - 4, 2 Write the factored form using these integers. Tap for more steps 2x = 12 2 x = 12. Solution. See More … f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8.2. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of . Use the quadratic formula to find the solutions. Copied to clipboard. Math can be an intimidating subject. 2x = - 4x + 2x. Find the Vertex Form y=x^2-2x-8. Add 1 to both sides of the equation : On the right hand side we have : 8 + 1 or, (8/1)+ (1/1) First type the equation 2x+3=15. Search our database of more than 200 calculators. Move all terms not containing x x to the right side of the equation. x^{2}+2x+1^{2}=y+8+1^{2} Divide 2, the coefficient of the x term, by 2 to get 1. Get immediate feedback and guidance with step-by-step solutions and Wolfram Problem Generator. It shows you the solution, graph, detailed steps and explanations for each problem. If you want Read More.2 Factoring: x 3 +x 2-2x-8 Thoughtfully split the expression at hand into groups, each group having two terms : Group 1: -2x-8 Group 2: x 3 +x 2 Pull out from each group separately : Answer link. Find the Vertex y=x^2-2x-8.78, 17. Tap for more steps Direction: Opens Up. Factor x^3+4x^2-2x-8.3. Add the term to each side of the equation. In this case, there is no real number that makes the expression undefined. y = x2 − 2x − 8 y = x 2 - 2 x - 8. Simplify ±√8 ± 8. In such case the quadratic equation can be expressed as x - α x - β Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. 2x_{8}^{1-1} The derivative of ax^{n} is nax^{n-1}. We'll first write the skeleton form of the equatio 求解 x^2-2x-8=0 | Microsoft Math Solver.

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3. We need to factories and find the factors of the given quadratic equation x 2 - 2 x - 8. Related Symbolab blog posts. To create a trinomial square on the left side of the equation, find a value that is equal to the square of … Algebra Solve for x x^2-2x=8 x2 − 2x = 8 x 2 - 2 x = 8 Subtract 8 8 from both sides of the equation. Example: 2x-1=y,2y+3=x. 求解 x 的值. Swap sides so that all variable terms are on the left hand side. x 2 + 6 x + 8 can be factorized as (x + 2) (x + 4) View Solution. factor-calculator. x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Solve quadratic equations step-by-step. List all such integer pairs Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. y=x^{2}+2x-8. Root square both sides: x + 1 = ± √9. Practice, practice, practice. This is not the case. vertex is (-1;-9), y-intercept is (0;-8), x-intercepts are (2;0) and (-4;0) y- intercept is when x = 0, i. quadratic-equation-calculator. The final answer is the combination of both solutions. Substitute 4 for x_{1} and -2 for x_{2}. If it is known the way to solve an equation of 2° degree, here there is the second way to factor it: We can imagine that this polynomial "becomes" an equation: 3x^2-2x-8=0, we can calculate the quantity Delta=b^2-4ac=4+96=100, and than we have to use this formula: x_(1,2)=(-b+ Solve for x 2x-4=8. Step 2: Click the blue arrow to submit and see the result! The solve for x calculator allows you to enter your problem and solve the equation to see the f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. Tap for more steps x2 −2x − 8.2. Tap for more steps x = 4,−2 x = 4, - 2. x^{2}+2x=y+8 . Related Symbolab blog posts. Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1. View Solution. Add 8 to both sides. Since ab is negative, a and b have the opposite signs. For math, science, nutrition, history In this case x-intercept doesn't exist since equation $-x^2+2x-2=0$ does not has the solutions (use quadratic equation solver to check ). Solve. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. For chemistry, calculus, algebra, trigonometry, equation solving, basic math and more. Related Symbolab blog posts. The result Algebra. Use the slope-intercept form to find the slope and y-intercept. Get immediate feedback and guidance with step-by-step solutions and Wolfram Problem Generator. Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics.9.1. For this inequality to be true following two possibilities can exist: i) x −4 ≥ 0 and x +2 ≤ 0 (ii) x − 4 ≤ 0 and x + 2 ≥ 0. Solve quadratic equations step-by-step. Factor x x out of x⋅x+x⋅−2 x ⋅ x + x ⋅ - 2. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0.78]} [Ans] Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Step 2. Tap for more steps Step 3. High School Math Solutions - Quadratic Equations Calculator, Part 3. Step 2. x+1=1 x+1=-1 . x^{2}+2x-8=\left(x-2\right)\left(x-\left(-4\right)\right) Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Tap for more steps x-intercept (s): (4,0),(−2,0) ( 4, 0), ( - 2, 0) Find the y-intercepts. Matrix. Subtract from . Guides. Sum of the zeroes = - `(` Also sum of the zeroes of the polynomial = 4 - 2 = 2. Let's factor the polynomial and find them: x^2-2x-8=0 (x-4) (x+2)=0 x-4=0 x=4 Explanation: x2 +2x − 8 = 0. Drying Method: Kiln-dried. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Standard VIII. 2x−8 2 x - 8. Tap for more steps y = (x+ 1)2 −9 y = ( x + 1) 2 - 9. Get Step by Step Now. Popular Problems. Solve quadratic equations step-by-step. Find the properties of the given parabola. But what Differentiation. Tap for more steps 15x2 + 10x−12x−8 15 x 2 + 10 x - 12 x - 8. We can see this since #x^2-2x+1# is a perfect square, so it touches the x-axis at a single root. Directrix: y = −27 4 y = - 27 4. −2x = 8 - 2 x = 8. y-intercept: (0,−8) ( 0, - 8) Any line can be graphed using two points. Nothing further can be done with this topic. Let us assume that the equation is in the form a x 2 + b x + c. 11+6x+x^2=-\frac{6}{x} x^3-2x=0; Show More; Description. x^{2}+2x+1^{2}=y+8+1^{2} Divide 2, the coefficient of the x term, by 2 to get 1. en. Learning math takes practice, lots of practice. \frac{x^{12}}{x^{-2}} (2x)^{2} x^{2}\cdot x^{3} Show More; Description. An example of a polynomial of a single indeterminate x is x² − 4x + 7. Tap for more steps y = (x+ 1)2 −9 y = ( x + 1) 2 - 9. Dressing: S4S. Matrix. x2 − 2x − 5 = 0 x 2 - 2 x - 5 = 0. Example 2. en. Simplify 2x-8. Change the to . Algebra Calculator - get free step-by-step solutions for your algebra math problems Factorise x 2 - 2 x - 8.
 Enter a problem Cooking Calculators
. Then type x=6. Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics. 2±√(−2)2 −4 ⋅(1⋅−5) 2⋅1 2 ± Algebra. Middle School Math Solutions - Equation Calculator. Add and subtract 1: x2 +2x + 1 − 1 =. 2x_{8}^{0} Subtract 1 from 1. Standard VIII. y=x^{2}-2x-8.2 Solving x2-2x-8 = 0 by Completing The Square . x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0. The solution is Algebra. Replace the variable with in the expression. Multiply 8 8 by 2 2. You can also see that the midpoint of r and s corresponds to the axis of symmetry of the parabola represented by the quadratic equation y=x^2+Bx+C. It is pretty GCD of x^4+2x^3-9x^2+46x-16 with x^4-8x^3+25x^2-46x+16; quotient of x^3-8x^2+17x-6 with x-3; remainder of x^3-2x^2+5x-7 divided by x-3; roots of x^2-3x+2; View more examples; Access instant learning tools. y = x2 − 2x − 8 y = x 2 - 2 x - 8. 查看解决方案步骤.. Algebra. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Directrix: y = −37 4 y = - 37 4. Tap for more steps Step 1.8. Online math solver with free step by step solutions to algebra, calculus, and other math problems. Related Symbolab blog posts. My Notebook, the Symbolab way. Step 1.0 = 2 - x 0 = 2−x . Simplify exponential expressions using algebraic rules step-by-step. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics 8. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Subtract 1 from both sides of the equation. Copy. Vertex: (1,−7) ( 1, - 7) Focus: (1,−29 4) ( 1, - 29 4) Axis of Symmetry: x = 1 x = 1. Solve your math problems using our free math solver with step-by-step solutions. Step 3. y = x² + 2x - 8. High School Math Solutions – Quadratic Equations Calculator, Part 3. Learning math takes practice, lots of practice. Type in any equation to get the solution, steps and graph Find the properties of the given parabola. Algebra. Steps Using the Quadratic Formula Steps Using Direct Factoring Method View solution steps Evaluate (x − 4) (x + 2) Graph Quiz Polynomial x2−2x−8 Videos Finding zeros of polynomials (1 of 2) Khan Academy Completing solutions to 2-variable equations Khan Academy Limits by factoring Khan Academy Exponent properties with quotients Khan Academy Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. Solving quadratics by factorizing (link to previous post) usually works just fine. To solve the equation, factor x^{2}-2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right).1. The equation calculator allows you to take a simple or complex equation and solve by best method possible. Ask a question for free Get a free answer to a quick problem. Join / Login. The Discriminant is given by: Δ = b2 − 4 ⋅ a ⋅ c. Step 2. Tap for more steps x⋅x+x⋅ −8+2x+2⋅−8 x ⋅ x + x ⋅ - 8 + 2 x + 2 ⋅ - 8. The sign to the right of the x of the second factor is the product of the sign of the coefficent of x (this is Simplify (x+2) (x-8) (x + 2) (x − 8) ( x + 2) ( x - 8) Expand (x+2)(x− 8) ( x + 2) ( x - 8) using the FOIL Method. Please check the expression entered or try another topic. Limits. Example: 2x-1=y,2y+3=x. The equation is of the form ax2 + bx + c = 0 where: a = 1,b = 2,c = − 8.9. Step 1. Factor x x out of −2x - 2 x. The final answer is . x^{2}+2x-8=0 . Pull terms out from under the radical, assuming Solve by Factoring x^2+2x-8=0. Differentiate w. Rewrite as . Simplify the left side. Step 3. (x +1)2 = 9. Solve quadratic equations step-by-step. The vertex has x-co-ordinate halfway between the x-intercept, x = -1 if x = -1 , y = (-1)^2 + 2 (-1) - 8 = -9.r. Arithmetic. For any term t except 0, t^{0}=1. Step 5. Combined, they sold 30 items. Substitute the values , , and into the quadratic formula and solve for . Solve for x x. For a polynomial of the form ax2 +bx+ c a x 2 + b x + c, rewrite the middle term as a sum of two terms whose product is a⋅c = 15⋅−8 = −120 a ⋅ c = 15 ⋅ - 8 = - 120 and whose sum is b = −2 b = - 2. Just like running, it takes practice and dedication. x = -4 ( x-2) = 0. 通过分组进行因式分解的步骤. My Notebook, the Symbolab way. Just like numbers have factors (2×3=6), expressions have factors ((x+2)(x+3)=x^2+5x+6). x + 1 = ± 3. Tap for more steps Direction: Opens Up. Directrix: y = −37 4 y = - 37 4. Explanation: Solve y = x2 +2x − 8. Simplify. 2, x, 8. Then add the square of 1 to both sides of the equation. 4 \sin \theta \cos \theta = 2 \sin \theta. Related Symbolab blog posts. Multiply x x by x x by adding the exponents. The calculator prints "True" to let you know that the answer is right. x2 + x−8 x 2 + x - 8. Sum of the zeroes = - `(` Also sum of the zeroes of the polynomial = 4 - 2 = 2.. Find a pair of integers whose product is c c and whose sum is b b. Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1. Trying to factor by pulling out : 1. Related Symbolab blog posts. The Factoring Calculator transforms complex expressions into a product of simpler factors. x=0 x=-2 . Since both terms are perfect squares, factor using the difference of squares formula, where and . Tap for more steps (x−4)(x+ 2) = 0 ( x - 4) ( x + 2) = 0. Arithmetic. x^{2}-2x-8=\left(x-4\right)\left(x-\left(-2\right)\right) Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Solve Quadratic Equation by Completing The Square. equation-calculator. Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k. x^{3}-4x^{2}+4x-2x^{2}+8x-8 . Use the quadratic formula to find the solutions. Middle School Math Solutions – Polynomials Calculator, Factoring Quadratics. Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step To solve the equation, factor x^{2}-2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). Find the Vertex f (x)=x^2+2x-8. This last sum is (-2 = -b).5-in x 7. x\left(x-2\right)+4\left(x-2\right) Factor out x in the first and 4 in the second group. 2-in x 8-in x 10-ft Southern Yellow Pine Kiln-dried Lumber. Trigonometry. Most questions answered within 4 hours. Set x x equal to 0 0. Step 2. Get step-by-step answers and hints for your math homework problems. Free math problem solver answers your algebra Factorise the expression: x2 −2x − 8 ≤ 0. Algebra Factor x^2-2x-8 x2 − 2x − 8 x 2 - 2 x - 8 Consider the form x2 + bx+c x 2 + b x + c. Then type the @ symbol. Factor out of . 一步步求解线性方程,二次方程,四次方程,绝对值方程和根式方程. 1. Select two x x values, and plug them into the equation to find the corresponding y y values. Simplify the result. Divide each term in 2x = 12 2 x = 12 by 2 2 and simplify.e - 2x. Difference of Squares: a2 - b2 = (a + b)(a - b) a 2 - b 2 = ( a + b) ( a - b) Step 2: Solution We need to factories and find the factors of the given quadratic equation x 2 - 2 x - 8 Let us assume that the equation is in the form a x 2 + b x + c We know that if α and β are the two root of the quadratic equation a x 2 + b x + c, then α + β = - b a and α β = c a. Tap for more steps x = ±2√2 x = ± 2 2.0-ft. Guides. Tap for more steps x = 6 x = 6.3. x^{2}-2x=8. Join / Login. Learn the basics, check your work, gain insight on different ways to solve problems. Over the next few weeks, we'll be showing how Symbolab So our polynomial becomes: 3x^2-6x+4x-8=3x(x-2)+4(x-2)=(x-2)(3x+4).1 Factoring x2+2x-8 The first term is, x2 its coefficient is 3x2+2x-8 Final result : (3x - 4) • (x + 2) Step by step solution : Step 1 :Equation at the end of step 1 : (3x2 + 2x) - 8 Step 2 :Trying to factor by How do you solve 3x − 8 = 2 ? x= 310 Explanation: Add 8 on both sides, so that it is 3x=10. Step 5. Step 5. x = 0 x = 0. Solve polynomials equations step-by-step. x^{2}-x-2. For any term t, t\times 1=t and 1t=t.1. Just like running, it takes practice and dedication. Simultaneous equation. Factor x x out of x2 −2x x 2 - 2 x. Find the missing number so that the equation has infinitely many solutions. x 2 + 6 x + 8 can be factorized as (x + 2) (x + 4) View Solution.snoitulos pets-yb-pets htiw revlos htam eerf ruo gnisu smelborp htam ruoy evloS stimiL noitargetnI noitaitnereffiD noitauqe suoenatlumiS xirtaM citemhtirA noitauqe raeniL. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more.1. x2+2x-8 Final result : (x + 4) • (x - 2) Step by step solution : Step 1 :Trying to factor by splitting the middle term 1. h = 1 h = 1.5. In this technique, if we have to factorise an expression like ax2 + bx +c, we need to think of 2 numbers such that: N 1 ⋅ N 2 = a ⋅ c = 1 ⋅ ( − 8) = − 8. Related Symbolab blog posts. Factor out the greatest common factor from each group. Algebra. Tap for more steps Step 1. 1: 2: 3: 4: 5: 6: 7: 8: 9: 0. Step 2. x2 + x − 8 x 2 + x - 8. 3. Next, use the negative value of the to find the second solution. Solving quadratics by factorizing (link to previous post) usually works Factor x^{2}+2x+1. Solve for x Calculator. exponents-calculator (2x)^{2} en. f min f min x = ax2 + bx+c x = a x 2 + b x + c occurs at x = − b 2a x = - b 2 a. You can also see that the midpoint of r and s corresponds to the axis of symmetry of the parabola represented by the quadratic equation y=x^2+Bx+C. We can find the x-coordinate by using x=-b/ (2a): x=-2/ (2*1)=-2/2=1 The y-coordinate can be found by plugging the x-value back into the equation: (1)^2-2 (1)-8 = 1-2-8 = 9 The vertex is (1,9). Step 1.

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To solve the equation for different variables step-by-step clear any fractions by multiplying both sides of the equation by the LCM of the denominators.1. Product of the zeroes = `(` Also product of the zeroes = 4 x -2 = -8. Add 8 8 to both sides of the equation. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Practice Makes Perfect. Tap for more steps (x−4)(x+ 2) = 0 ( x - 4) ( x + 2) = 0 Algebra Solve by Factoring x^2+2x-8=0 x2 + 2x − 8 = 0 x 2 + 2 x - 8 = 0 Factor x2 + 2x−8 x 2 + 2 x - 8 using the AC method. Step 1. Factor using the AC method. and. Enter a problem Cooking Calculators. x_8.11.2. Convert the inequality to an equation. Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1. Actual Dimensions: 1. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. Factorisation by Common Factors. Try it now: 2x+3=15 @ x=6 Clickable Demo Try entering 2x+3=15 @ x=6 into the text box. ∫ 01 xe−x2dx. Step 1. If you want Read More. Factor 5 a2 x2 y3-25 ax7 y2 z. 因式分解的步骤. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Add 1 to both sides of the equation : Popular Problems Algebra Solve by Completing the Square x^2+2x=8 x2 + 2x = 8 x 2 + 2 x = 8 To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b b. 2x − 4 = 8 2 x - 4 = 8. Since ab is negative, a and b have the opposite signs.nigoL ppa esU . 0 = x² + 2x - 8., < > ≤: ≥ ^ √: ⬅: : F _ ÷ | (* / ⌫ A: ↻: x: y = +-G What do you want to calculate? Calculate it! Examples: 1+2 , 1/3+1/4 , 2^3 * 2^2 (x+1) (x+2) (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2 (x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. Tap for more steps (x−1)2 −9 ( x - 1) 2 - 9. To simplify your expression using the Simplify Calculator, type in your expression like 2 (5x+4)-3x. Factor out of .58, -17. Just like running, it takes practice and dedication. Related Symbolab blog posts. It can factor expressions with polynomials involving any number of vaiables as well as more complex functions. Rewrite the polynomial. Tap for more steps Step 1. 2x − 8 2 x - 8. Factor x^2-2x+1. Use the quadratic formula to find the solutions. Vertex is at (1,7) and vertex form of equation is y =(x-1)^2 +7 graph{x^2-2x+8 [-35. Find a pair of integers whose product is c c and whose sum is b b. Related Symbolab blog posts. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0 Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC method.1. If you want Read More. In general, when x^{2}+bx+c is a perfect square, it can always be factored as \left(x+\frac{b}{2}\right)^{2}. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. 2 (-2x-8)-6x+? = -2x + 13. Related Symbolab blog posts. 0 = x (x+4) - 2(x + 4) 0 = (x + 4) (x - 2) So zero factors will be . Find My Store. Multiply by . Find the Roots (Zeros) f (x)=x^2+2x-8. 1) Write to factors, with x as the first term, this way: (x ) (x ) 2) The sign to the right of the x in the first factor is the same sign of the coeficient of x in the polynomial. Draw the graph y = x2 −9 and hence solve the equation x2 −2x−8= 0. If a a is positive, the minimum value of the function is f (− b 2a) f ( - b 2 a). Get all the terms with the wanted variable on one side of the equation and all the other terms on the other side. Tap for more steps Direction: Opens Up Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1 Directrix: y = −37 … Algebra Factor x^2-2x-8 x2 − 2x − 8 x 2 - 2 x - 8 Consider the form x2 + bx+c x 2 + b x + c. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework What is the vertex form of #y=x^2-2x+8#? How do I use the vertex formula to determine the vertex of the graph of the function and write it in standard form for f(x)=x^2-10x? Algebra.1 Factoring x2+2x+2 The first term is, x2 its coefficient is 1 . View Solution. en.54, 35. en. Simplify. Algebra. If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal to 0 0. Precalculus. Simultaneous equation. Rewrite 1 1 as 12 1 2. Substitute the values a = 1 a = 1, b = −2 b = - 2, and c = −8 c = - 8 into the quadratic formula and solve for x x. Mathematics. Replace the variable with in the expression.3. Tap for more steps Step 1. Middle School Math Solutions - Equation Calculator. To solve the equation, factor x^{2}+2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). Select a few x x values, and plug them into the equation to find the corresponding y y Click here:point_up_2:to get an answer to your question :writing_hand:factorize x2 2x 8. x2 + 2x+(1)2 = 8 +(1)2 x 2 + 2 x + ( 1) 2 = 8 + ( 1) 2 Algebra Solve for x x^2-2x=8 x2 − 2x = 8 x 2 - 2 x = 8 Subtract 8 8 from both sides of the equation. Get help on the web or with our math app. To find a and b, set up a system to be solved. quadratic-equation-calculator. Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. Related Symbolab blog posts. Step 2. So, in this case we will plot the graph using only two points. To find the opposite of 2x^{2}-8x+8, find the opposite of each term. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. \left(x-2\right)\left(x+4\right) Factor out common term x-2 by using distributive property. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and Solve by Completing the Square x^2-2x-8=0. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.1. Rewrite the trinomial as the product of two binomials (x-u)(x-v) Precalculus. Factor. Step 1. y = x2 − 2x − 8 y = x 2 - 2 x - 8. 4x-8=0 One solution was found : x = 2 Step by step solution : Step 1 :Pulling out like terms : 1. zs. On the last post we covered completing the square (see link). (x−4)(x+ 2) ( x - 4) ( x + 2) x^{2}-2x-8. Step 2. Find the properties of the given parabola. Solve for x x^2=8. a = 1 a = 1. Substitute 2 for x_{1} and -4 for x_{2}. Simplify . In ii) case x ≤ 4 and x ≥ −2 is a feasible solution. en. Mathematics. (b 2)2 = (−1)2 ( b 2) 2 = ( - 1) 2.0 = 8 - x 2 - 2 x 0 = 8 − x2 − 2x . 2x⋅x+2x⋅8 2 x ⋅ x + 2 x ⋅ 8. The domain of the expression is all real numbers except where the expression is undefined. A polynomial is a mathematical expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, and multiplication. Isolate the variable, and solve for the variable by undoing any arithmetic In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Polynomials are often written in the form: a₀ + a₁x + a₂x² + a₃x³ + + aₙxⁿ, where the a's are coefficients and x is the variable. Rewrite the equation in vertex form. (x+4)(x2 −2) ( x + 4) ( x 2 - 2) In this video we'll follow a clear set of steps for writing the factors for the equation x^2 - 2x - 8 = 0. Factorisation by Common Factors. Find the Domain and Range y=x^2-2x-8.t. Simplify the result. Add 8 to both side of the equation : x2-2x = 8. en. Add and . Integration. Step 2. x2 − 2x+12 x 2 - 2 x + 1 2.-1,8 -2,4 . Step 2. 1,-8 2,-4 .2. Tap for more steps y-intercept (s): (0,−8) ( 0, - 8) List the intersections. Find 2 real roots knowing sum (-b = -2) and product (c = -8). Simplify 2x-8. Learning math takes practice, lots of practice. Find the Vertex f (x)=x^2+2x-8. Welcome to our new "Getting Started" math solutions series. Find the properties of the given parabola. 15x2 − 2x − 8 15 x 2 - 2 x - 8. 2 . x2 = 8 x 2 = 8. Tap for more steps x(x−2) = 0 x ( x - 2) = 0. Find the x and y Intercepts y=x^2-2x-8. Draw the graph y = x2 −9 and hence solve the equation x2 −2x−8= 0. dxd (x − 5)(3x2 − 2) Integration. In the i) case , x ≥ 4 and x ≤ − 2, which is not possible. Q5 are the factors of the polynomial x 2 + 2 x Solve Using the Quadratic Formula x^2-2x-8=0. x^{2}-2x-8. Factor x x out of x2 x 2. Differentiation. Algebra. In this case, whose product is −8 - 8 and whose sum is −2 - 2. Practice Makes Perfect. Simplify and combine like terms., < > ≤: ≥ ^ √: ⬅: : F _ ÷ | (* / ⌫ A: ↻: x: y = +-G (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2(x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. x→−3lim x2 + 2x − 3x2 − 9. The How do you list all possible roots and find all factors of 3x2 + 2x + 2 ? Solve for x -2x=8. 1: 2: 3: 4: 5: 6: 7: 8: 9: 0. (x-4) (x+2) ≤ 0. Find the properties of the given parabola. 求解. $\exponential { (x)} {2} - 2 x - 8 = 0 $. Step 7. Step 1: Enter the Equation you want to solve into the editor.1.2 Solving x2-2x-8 = 0 by Completing The Square . y = 2x − 8 y = 2 x - 8. Examples. 2x_{8} Quiz. 5x-6=3x-8; x^2-x-6=0; x^4-5x^2+4=0 \sqrt{x-1}-x=-7 \left|3x+1\right|=4 \log _2(x+1)=\log _3(27) 3^x=9^{x+5} 显示更多; 描述. Take −8 to the right: x2 +2x = 8. for zero factor we will put y = 0 x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. High School Math Solutions - Quadratic Equations Calculator, Part 2. Factor pairs of (c = -8) --> (-2, 4) (2, -4). Select a few x x values, and plug them into the equation to find the corresponding y y Click here:point_up_2:to get an answer to your question :writing_hand:factorize x2 2x 8. Algebra Examples. Factor out of . Consider the form . Step 3. x= 87±12 2 I will let you finish this off Explanation: Possible factors of 15 are 1 and 15 or 3 and 5 Possible factors of 4 are 1 and 4 or 2 and 2 Let 3x2-2x-4 Final result : 3x2 - 2x - 4 Step by step solution : Step 1 :Equation at the end of step 1 : (3x2 - 2x) - 4 Step 2 :Trying to factor by splitting the middle term 2. Find the x-intercepts. If any individual factor on the left side of the equation is equal to , the entire expression will be equal to . Therefor, the 2 real roots are: 2 and -4. quadratic-equation-calculator. Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC method. An example with three indeterminates is x³ + 2xyz² − yz + 1. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Step 3. Step 3. y = −x2 + 2x − 8 y = - x 2 + 2 x - 8. Step 6. Calculus. Multiple Options Available. Find the Maximum/Minimum Value f (x)=x^2-2x-8. Factoring is the process Read More.10. Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. 2x − 8 2 x - 8. List all such … factor\:x^6-2x^4-x^2+2 ; factor\:2x^5+x^4-2x-1 ; Show More; Description. Tap for more steps Direction: Opens Down. Algebra. x2 +2x + 1 = 8 + 1. Algebra. Steps Using the Quadratic Formula Steps for Completing the Square Steps Using Direct Factoring Method View solution steps Graph Graph Both Sides in 2D Graph in 2D Quiz Quadratic Equation x2−2x−8 = 0 Videos Finding zeros of polynomials (1 of 2) Khan Academy Completing solutions to 2-variable equations Khan Academy Limits by factoring Khan Academy Factoring Calculator Full pad Examples Frequently Asked Questions (FAQ) What is the sum of cubes formula? The sum of cubes formula is a³ + b³ = (a+b) (a² - ab + b²) What is the difference of squares formula? The difference of squares formula is a² - b² = (a+b) (a-b) What is the difference of cubes formula? To solve the equation for different variables step-by-step clear any fractions by multiplying both sides of the equation by the LCM of the denominators. 0 = x² + 4x - 2x - 8. You write down problems, solutions and notes to go back Read More. Next, let's find the x-intercepts, which are the zeroes of the equation. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.1. Quadratic equation { x } ^ { 2 } - 4 x - 5 = 0. More Examples Factor 2x^2-8. Graph y=x^2-2x-2. Enter a problem Cooking Calculators. GCD of x^4+2x^3-9x^2+46x-16 with x^4-8x^3+25x^2-46x+16; quotient of x^3-8x^2+17x-6 with x-3; remainder of x^3-2x^2+5x-7 divided by x-3; roots of x^2-3x+2; View more examples; Access instant learning tools. Solve by Factoring x^2-2x-2=0. Combine -4x^{2} and -2x^{2} to get -6x^{2}. ac+bc=(a+b) c.10. Solve by Completing the Square x^2+2x=8. 5 problems similar to: 2x8= Share. Find the properties of the given parabola. en. Welcome to our new "Getting Started" math solutions series. Thus, 2 x2+3 xy=x (2 x+3 y) Notice that we can always check the factorization by multiplying the factors together and comparing the result with the original polynomial. Step 2. 2\times 1 . To find a and b, set up a system to be solved. Tap for more steps x2(x+ 4)−2(x+4) x 2 ( x + 4) - 2 ( x + 4) Factor the polynomial by factoring out the greatest common factor, x+4 x + 4. Type in any equation to get the solution, steps … Find the properties of the given parabola. The final answer is . Step 5. Swap sides so that all variable terms are on the left hand side. Algebra. Therefore, x = 2 and ( -4) will be the zeros of x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. Step 2. Solve by Factoring x^2-2x-5=0. See More Examples » x+3=5 1/3 + 1/4 y=x^2+1 Step 1: Enter the expression you want to factor in the editor. Step 5. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. The unknowing Read More. Middle School Math Solutions – Polynomials Calculator, Factoring Quadratics. Tap for more steps Step 1. Tap for more steps 2x2 + 2x⋅8 2 x 2 + 2 x ⋅ 8. Related Symbolab blog posts.3. Combine 4x and 8x to get 12x. Use the quadratic formula to find the solutions. factor\:x^6-2x^4-x^2+2; factor\:2x^5+x^4-2x-1; Show More; Description. x3 + 4x2 − 2x − 8 x 3 + 4 x 2 - 2 x - 8. y = x2 − 2x − 8 y = x 2 - 2 x - 8. The domain of the expression is all real numbers except where the expression is undefined. Find the x-intercepts. The rule states that the square of the sum (or difference) of two terms is equal to the sum (or difference) of the squares of the terms plus twice the product of the terms. x^{2}-2x=8. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0 Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC … Solve an equation, inequality or a system.3. Use app Login. 使用配方法的步骤. Algebra Calculator - get free step-by-step solutions for your algebra math problems Therefore the zeroes of the polynomial x 2 - 2x - 8 are {4, 2} Relationship between the zeroes and the coefficients of the polynomial. Math notebooks have been around for hundreds of years. Over the next few weeks, we x^{2}-2x-8. en. Rewrite the equation in vertex form.