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Simplifying 2x2 + 16x + -70 = -4 Reorder the terms: -70 + 16x + 2x2 = -4 Solving -70 + 16x + 2x2 = -4 Solving for variable 'x'. Reorder the terms: -70 + 4 + 16x + 2x2 = -4 + 4 Combine like terms: -70 + 4 = -66 -66 + 16x + 2x2 = -4 + 4 Combine like terms: -4 + 4 = 0 -66 + 16x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-33 + 8x + x2) = 0 Factor a trinomial. 2((-11 + -1x)(3 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-11 + -1x)' equal to zero and attempt to solve: Simplifying -11 + -1x = 0 Solving -11 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1x = 0 + 11 -1x = 0 + 11 Combine like terms: 0 + 11 = 11 -1x = 11 Divide each side by '-1'. x = -11 Simplifying x = -11Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {-11, 3}
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