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Simplifying x2 + 2x = -2x + -4 Reorder the terms: 2x + x2 = -2x + -4 Reorder the terms: 2x + x2 = -4 + -2x Solving 2x + x2 = -4 + -2x Solving for variable 'x'. Reorder the terms: 4 + 2x + 2x + x2 = -4 + -2x + 4 + 2x Combine like terms: 2x + 2x = 4x 4 + 4x + x2 = -4 + -2x + 4 + 2x Reorder the terms: 4 + 4x + x2 = -4 + 4 + -2x + 2x Combine like terms: -4 + 4 = 0 4 + 4x + x2 = 0 + -2x + 2x 4 + 4x + x2 = -2x + 2x Combine like terms: -2x + 2x = 0 4 + 4x + x2 = 0 Factor a trinomial. (2 + x)(2 + x) = 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 + 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 = -2Solution
x = {-2, -2}
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