3h^2+13h+12=0

Solution for 3h^2+13h+12=0 equation:

Simplifying
3h2 + 13h + 12 = 0

Reorder the terms:
12 + 13h + 3h2 = 0

Solving
12 + 13h + 3h2 = 0

Solving for variable 'h'.

Factor a trinomial.
(3 + h)(4 + 3h) = 0

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

Simplifying
3 + h = 0

Solving
3 + h = 0

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

Add '-3' to each side of the equation.
3 + -3 + h = 0 + -3

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

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

Simplifying
h = -3
Subproblem 2
Set the factor '(4 + 3h)' equal to zero and attempt to solve:

Simplifying
4 + 3h = 0

Solving
4 + 3h = 0

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

Add '-4' to each side of the equation.
4 + -4 + 3h = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 3h = 0 + -4
3h = 0 + -4

Combine like terms: 0 + -4 = -4
3h = -4

Divide each side by '3'.
h = -1.333333333

Simplifying
h = -1.333333333
Solution
h = {-3, -1.333333333}