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Simplifying 2x = 2(x2 + -12) Reorder the terms: 2x = 2(-12 + x2) 2x = (-12 * 2 + x2 * 2) 2x = (-24 + 2x2) Solving 2x = -24 + 2x2 Solving for variable 'x'. Reorder the terms: 24 + 2x + -2x2 = -24 + 2x2 + 24 + -2x2 Reorder the terms: 24 + 2x + -2x2 = -24 + 24 + 2x2 + -2x2 Combine like terms: -24 + 24 = 0 24 + 2x + -2x2 = 0 + 2x2 + -2x2 24 + 2x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 24 + 2x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(12 + x + -1x2) = 0 Factor a trinomial. 2((4 + -1x)(3 + x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Subproblem 2
Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3Solution
x = {4, -3}
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