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Simplifying -2x2 = 12x + 16 Reorder the terms: -2x2 = 16 + 12x Solving -2x2 = 16 + 12x Solving for variable 'x'. Reorder the terms: -16 + -12x + -2x2 = 16 + 12x + -16 + -12x Reorder the terms: -16 + -12x + -2x2 = 16 + -16 + 12x + -12x Combine like terms: 16 + -16 = 0 -16 + -12x + -2x2 = 0 + 12x + -12x -16 + -12x + -2x2 = 12x + -12x Combine like terms: 12x + -12x = 0 -16 + -12x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '-2'. -2(8 + 6x + x2) = 0 Factor a trinomial. -2((4 + x)(2 + x)) = 0 Ignore the factor -2.Subproblem 1
Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4Subproblem 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 = {-4, -2}
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