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Simplifying m2 + 2m + -87 = -7 Reorder the terms: -87 + 2m + m2 = -7 Solving -87 + 2m + m2 = -7 Solving for variable 'm'. Reorder the terms: -87 + 7 + 2m + m2 = -7 + 7 Combine like terms: -87 + 7 = -80 -80 + 2m + m2 = -7 + 7 Combine like terms: -7 + 7 = 0 -80 + 2m + m2 = 0 Factor a trinomial. (-10 + -1m)(8 + -1m) = 0Subproblem 1
Set the factor '(-10 + -1m)' equal to zero and attempt to solve: Simplifying -10 + -1m = 0 Solving -10 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -1m = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -1m = 0 + 10 -1m = 0 + 10 Combine like terms: 0 + 10 = 10 -1m = 10 Divide each side by '-1'. m = -10 Simplifying m = -10Subproblem 2
Set the factor '(8 + -1m)' equal to zero and attempt to solve: Simplifying 8 + -1m = 0 Solving 8 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1m = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1m = 0 + -8 -1m = 0 + -8 Combine like terms: 0 + -8 = -8 -1m = -8 Divide each side by '-1'. m = 8 Simplifying m = 8Solution
m = {-10, 8}
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