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Simplifying 2x2 + 14x + 49 = 169 Reorder the terms: 49 + 14x + 2x2 = 169 Solving 49 + 14x + 2x2 = 169 Solving for variable 'x'. Reorder the terms: 49 + -169 + 14x + 2x2 = 169 + -169 Combine like terms: 49 + -169 = -120 -120 + 14x + 2x2 = 169 + -169 Combine like terms: 169 + -169 = 0 -120 + 14x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-60 + 7x + x2) = 0 Factor a trinomial. 2((-12 + -1x)(5 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-12 + -1x)' equal to zero and attempt to solve: Simplifying -12 + -1x = 0 Solving -12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -1x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -1x = 0 + 12 -1x = 0 + 12 Combine like terms: 0 + 12 = 12 -1x = 12 Divide each side by '-1'. x = -12 Simplifying x = -12Subproblem 2
Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5Solution
x = {-12, 5}
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