3m^2+15m=-18

Solution for 3m^2+15m=-18 equation:

Simplifying
3m2 + 15m = -18

Reorder the terms:
15m + 3m2 = -18

Solving
15m + 3m2 = -18

Solving for variable 'm'.

Reorder the terms:
18 + 15m + 3m2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + 15m + 3m2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(6 + 5m + m2) = 0

Factor a trinomial.
3((3 + m)(2 + m)) = 0

Ignore the factor 3.
Subproblem 1
Set the factor '(3 + m)' equal to zero and attempt to solve:

Simplifying
3 + m = 0

Solving
3 + m = 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 + m = 0 + -3

Combine like terms: 3 + -3 = 0
0 + m = 0 + -3
m = 0 + -3

Combine like terms: 0 + -3 = -3
m = -3

Simplifying
m = -3
Subproblem 2
Set the factor '(2 + m)' equal to zero and attempt to solve:

Simplifying
2 + m = 0

Solving
2 + m = 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 + m = 0 + -2

Combine like terms: 2 + -2 = 0
0 + m = 0 + -2
m = 0 + -2

Combine like terms: 0 + -2 = -2
m = -2

Simplifying
m = -2
Solution
m = {-3, -2}