16x^2+36x=-18

Solution for 16x^2+36x=-18 equation:

Simplifying
16x2 + 36x = -18

Reorder the terms:
36x + 16x2 = -18

Solving
36x + 16x2 = -18

Solving for variable 'x'.

Reorder the terms:
18 + 36x + 16x2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + 36x + 16x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 18x + 8x2) = 0

Factor a trinomial.
2((3 + 2x)(3 + 4x)) = 0

Ignore the factor 2.
Subproblem 1
Set the factor '(3 + 2x)' equal to zero and attempt to solve:

Simplifying
3 + 2x = 0

Solving
3 + 2x = 0

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

Add '-3' to each side of the equation.
3 + -3 + 2x = 0 + -3

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

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

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

Simplifying
x = -1.5
Subproblem 2
Set the factor '(3 + 4x)' equal to zero and attempt to solve:

Simplifying
3 + 4x = 0

Solving
3 + 4x = 0

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

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

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

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

Divide each side by '4'.
x = -0.75

Simplifying
x = -0.75
Solution
x = {-1.5, -0.75}