m^2+7m=18

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Solution for m^2+7m=18 equation:


Simplifying
m2 + 7m = 18

Reorder the terms:
7m + m2 = 18

Solving
7m + m2 = 18

Solving for variable 'm'.

Reorder the terms:
-18 + 7m + m2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 7m + m2 = 0

Factor a trinomial.
(-9 + -1m)(2 + -1m) = 0

Subproblem 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 = -9

Subproblem 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 = 2

Solution

m = {-9, 2}

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