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Simplifying (m + -2)(m + 9) = 0 Reorder the terms: (-2 + m)(m + 9) = 0 Reorder the terms: (-2 + m)(9 + m) = 0 Multiply (-2 + m) * (9 + m) (-2(9 + m) + m(9 + m)) = 0 ((9 * -2 + m * -2) + m(9 + m)) = 0 ((-18 + -2m) + m(9 + m)) = 0 (-18 + -2m + (9 * m + m * m)) = 0 (-18 + -2m + (9m + m2)) = 0 Combine like terms: -2m + 9m = 7m (-18 + 7m + m2) = 0 Solving -18 + 7m + m2 = 0 Solving for variable 'm'. Factor a trinomial. (-9 + -1m)(2 + -1m) = 0Subproblem 1
Set the factor '(-9 + -1m)' equal to zero and attempt to solve: Simplifying -9 + -1m = 0 Solving -9 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1m = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1m = 0 + 9 -1m = 0 + 9 Combine like terms: 0 + 9 = 9 -1m = 9 Divide each side by '-1'. m = -9 Simplifying m = -9Subproblem 2
Set the factor '(2 + -1m)' equal to zero and attempt to solve: Simplifying 2 + -1m = 0 Solving 2 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1m = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1m = 0 + -2 -1m = 0 + -2 Combine like terms: 0 + -2 = -2 -1m = -2 Divide each side by '-1'. m = 2 Simplifying m = 2Solution
m = {-9, 2}
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