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Simplifying x4 = 8(x2 + -2) Reorder the terms: x4 = 8(-2 + x2) x4 = (-2 * 8 + x2 * 8) x4 = (-16 + 8x2) Solving x4 = -16 + 8x2 Solving for variable 'x'. Reorder the terms: 16 + -8x2 + x4 = -16 + 8x2 + 16 + -8x2 Reorder the terms: 16 + -8x2 + x4 = -16 + 16 + 8x2 + -8x2 Combine like terms: -16 + 16 = 0 16 + -8x2 + x4 = 0 + 8x2 + -8x2 16 + -8x2 + x4 = 8x2 + -8x2 Combine like terms: 8x2 + -8x2 = 0 16 + -8x2 + x4 = 0 Factor a trinomial. (4 + -1x2)(4 + -1x2) = 0 Factor a difference between two squares. ((2 + x)(2 + -1x))(4 + -1x2) = 0 Factor a difference between two squares. ((2 + x)(2 + -1x))(2 + x)(2 + -1x) = 0Subproblem 1
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 = -2Subproblem 2
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 = 2Subproblem 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 = -2Subproblem 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 = 2Solution
x = {-2, 2, -2, 2}
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