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Simplifying 86x2 + 72x + -14 = 0 Reorder the terms: -14 + 72x + 86x2 = 0 Solving -14 + 72x + 86x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-7 + 36x + 43x2) = 0 Factor a trinomial. 2((-1 + -1x)(7 + -43x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1Subproblem 2
Set the factor '(7 + -43x)' equal to zero and attempt to solve: Simplifying 7 + -43x = 0 Solving 7 + -43x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -43x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -43x = 0 + -7 -43x = 0 + -7 Combine like terms: 0 + -7 = -7 -43x = -7 Divide each side by '-43'. x = 0.1627906977 Simplifying x = 0.1627906977Solution
x = {-1, 0.1627906977}
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