2m^2+3m-90=0

Solution for 2m^2+3m-90=0 equation:

Simplifying
2m2 + 3m + -90 = 0

Reorder the terms:
-90 + 3m + 2m2 = 0

Solving
-90 + 3m + 2m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-15 + -2m)(6 + -1m) = 0

Subproblem 1
Set the factor '(-15 + -2m)' equal to zero and attempt to solve:

Simplifying
-15 + -2m = 0

Solving
-15 + -2m = 0

Move all terms containing m to the left, all other terms to the right.

Add '15' to each side of the equation.
-15 + 15 + -2m = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -2m = 0 + 15
-2m = 0 + 15

Combine like terms: 0 + 15 = 15
-2m = 15

Divide each side by '-2'.
m = -7.5

Simplifying
m = -7.5
Subproblem 2
Set the factor '(6 + -1m)' equal to zero and attempt to solve:

Simplifying
6 + -1m = 0

Solving
6 + -1m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-6' to each side of the equation.
6 + -6 + -1m = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1m = 0 + -6
-1m = 0 + -6

Combine like terms: 0 + -6 = -6
-1m = -6

Divide each side by '-1'.
m = 6

Simplifying
m = 6
Solution
m = {-7.5, 6}