2m^2-21m-36=0

Solution for 2m^2-21m-36=0 equation:

Simplifying
2m2 + -21m + -36 = 0

Reorder the terms:
-36 + -21m + 2m2 = 0

Solving
-36 + -21m + 2m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-3 + -2m)(12 + -1m) = 0

Subproblem 1
Set the factor '(-3 + -2m)' equal to zero and attempt to solve:

Simplifying
-3 + -2m = 0

Solving
-3 + -2m = 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 + -2m = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2m = 0 + 3
-2m = 0 + 3

Combine like terms: 0 + 3 = 3
-2m = 3

Divide each side by '-2'.
m = -1.5

Simplifying
m = -1.5
Subproblem 2
Set the factor '(12 + -1m)' equal to zero and attempt to solve:

Simplifying
12 + -1m = 0

Solving
12 + -1m = 0

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

Add '-12' to each side of the equation.
12 + -12 + -1m = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1m = 0 + -12
-1m = 0 + -12

Combine like terms: 0 + -12 = -12
-1m = -12

Divide each side by '-1'.
m = 12

Simplifying
m = 12
Solution
m = {-1.5, 12}