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Simplifying (2x + 16)(2x + 12) = 320 Reorder the terms: (16 + 2x)(2x + 12) = 320 Reorder the terms: (16 + 2x)(12 + 2x) = 320 Multiply (16 + 2x) * (12 + 2x) (16(12 + 2x) + 2x * (12 + 2x)) = 320 ((12 * 16 + 2x * 16) + 2x * (12 + 2x)) = 320 ((192 + 32x) + 2x * (12 + 2x)) = 320 (192 + 32x + (12 * 2x + 2x * 2x)) = 320 (192 + 32x + (24x + 4x2)) = 320 Combine like terms: 32x + 24x = 56x (192 + 56x + 4x2) = 320 Solving 192 + 56x + 4x2 = 320 Solving for variable 'x'. Reorder the terms: 192 + -320 + 56x + 4x2 = 320 + -320 Combine like terms: 192 + -320 = -128 -128 + 56x + 4x2 = 320 + -320 Combine like terms: 320 + -320 = 0 -128 + 56x + 4x2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-32 + 14x + x2) = 0 Factor a trinomial. 4((-16 + -1x)(2 + -1x)) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-16 + -1x)' equal to zero and attempt to solve: Simplifying -16 + -1x = 0 Solving -16 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + -1x = 0 + 16 Combine like terms: -16 + 16 = 0 0 + -1x = 0 + 16 -1x = 0 + 16 Combine like terms: 0 + 16 = 16 -1x = 16 Divide each side by '-1'. x = -16 Simplifying x = -16Subproblem 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 = 2Solution
x = {-16, 2}
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