5m^2-28m-12=0

Solution for 5m^2-28m-12=0 equation:

Simplifying
5m2 + -28m + -12 = 0

Reorder the terms:
-12 + -28m + 5m2 = 0

Solving
-12 + -28m + 5m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-2 + -5m)(6 + -1m) = 0

Subproblem 1
Set the factor '(-2 + -5m)' equal to zero and attempt to solve:

Simplifying
-2 + -5m = 0

Solving
-2 + -5m = 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 + -5m = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -5m = 0 + 2
-5m = 0 + 2

Combine like terms: 0 + 2 = 2
-5m = 2

Divide each side by '-5'.
m = -0.4

Simplifying
m = -0.4
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 = {-0.4, 6}