(x^2-x-2)*(x^2+x-2)=0

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Solution for (x^2-x-2)*(x^2+x-2)=0 equation:


Simplifying
(x2 + -1x + -2)(x2 + x + -2) = 0

Reorder the terms:
(-2 + -1x + x2)(x2 + x + -2) = 0

Reorder the terms:
(-2 + -1x + x2)(-2 + x + x2) = 0

Multiply (-2 + -1x + x2) * (-2 + x + x2)
(-2(-2 + x + x2) + -1x * (-2 + x + x2) + x2(-2 + x + x2)) = 0
((-2 * -2 + x * -2 + x2 * -2) + -1x * (-2 + x + x2) + x2(-2 + x + x2)) = 0
((4 + -2x + -2x2) + -1x * (-2 + x + x2) + x2(-2 + x + x2)) = 0
(4 + -2x + -2x2 + (-2 * -1x + x * -1x + x2 * -1x) + x2(-2 + x + x2)) = 0
(4 + -2x + -2x2 + (2x + -1x2 + -1x3) + x2(-2 + x + x2)) = 0
(4 + -2x + -2x2 + 2x + -1x2 + -1x3 + (-2 * x2 + x * x2 + x2 * x2)) = 0
(4 + -2x + -2x2 + 2x + -1x2 + -1x3 + (-2x2 + x3 + x4)) = 0

Reorder the terms:
(4 + -2x + 2x + -2x2 + -1x2 + -2x2 + -1x3 + x3 + x4) = 0

Combine like terms: -2x + 2x = 0
(4 + 0 + -2x2 + -1x2 + -2x2 + -1x3 + x3 + x4) = 0
(4 + -2x2 + -1x2 + -2x2 + -1x3 + x3 + x4) = 0

Combine like terms: -2x2 + -1x2 = -3x2
(4 + -3x2 + -2x2 + -1x3 + x3 + x4) = 0

Combine like terms: -3x2 + -2x2 = -5x2
(4 + -5x2 + -1x3 + x3 + x4) = 0

Combine like terms: -1x3 + x3 = 0
(4 + -5x2 + 0 + x4) = 0
(4 + -5x2 + x4) = 0

Solving
4 + -5x2 + x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -1x2)(4 + -1x2) = 0

Factor a difference between two squares.
((1 + x)(1 + -1x))(4 + -1x2) = 0

Factor a difference between two squares.
((2 + x)(2 + -1x))(1 + x)(1 + -1x) = 0

Subproblem 1

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Subproblem 3

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 4

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-1, 1, -2, 2}

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