4h^2+9h+5=0

Solution for 4h^2+9h+5=0 equation:

Simplifying
4h2 + 9h + 5 = 0

Reorder the terms:
5 + 9h + 4h2 = 0

Solving
5 + 9h + 4h2 = 0

Solving for variable 'h'.

Factor a trinomial.
(5 + 4h)(1 + h) = 0

Subproblem 1
Set the factor '(5 + 4h)' equal to zero and attempt to solve:

Simplifying
5 + 4h = 0

Solving
5 + 4h = 0

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

Add '-5' to each side of the equation.
5 + -5 + 4h = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 4h = 0 + -5
4h = 0 + -5

Combine like terms: 0 + -5 = -5
4h = -5

Divide each side by '4'.
h = -1.25

Simplifying
h = -1.25
Subproblem 2
Set the factor '(1 + h)' equal to zero and attempt to solve:

Simplifying
1 + h = 0

Solving
1 + h = 0

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

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

Combine like terms: 1 + -1 = 0
0 + h = 0 + -1
h = 0 + -1

Combine like terms: 0 + -1 = -1
h = -1

Simplifying
h = -1
Solution
h = {-1.25, -1}