3m^2+15m=72

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Solution for 3m^2+15m=72 equation:


Simplifying
3m2 + 15m = 72

Reorder the terms:
15m + 3m2 = 72

Solving
15m + 3m2 = 72

Solving for variable 'm'.

Reorder the terms:
-72 + 15m + 3m2 = 72 + -72

Combine like terms: 72 + -72 = 0
-72 + 15m + 3m2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-24 + 5m + m2) = 0

Factor a trinomial.
3((-8 + -1m)(3 + -1m)) = 0

Ignore the factor 3.

Subproblem 1

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 = -8

Subproblem 2

Set the factor '(3 + -1m)' equal to zero and attempt to solve: Simplifying 3 + -1m = 0 Solving 3 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1m = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1m = 0 + -3 -1m = 0 + -3 Combine like terms: 0 + -3 = -3 -1m = -3 Divide each side by '-1'. m = 3 Simplifying m = 3

Solution

m = {-8, 3}

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