4x(2x-9)=-36

Solution for 4x(2x-9)=-36 equation:

Simplifying
4x(2x + -9) = -36

Reorder the terms:
4x(-9 + 2x) = -36
(-9 * 4x + 2x * 4x) = -36
(-36x + 8x2) = -36

Solving
-36x + 8x2 = -36

Solving for variable 'x'.

Reorder the terms:
36 + -36x + 8x2 = -36 + 36

Combine like terms: -36 + 36 = 0
36 + -36x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(9 + -9x + 2x2) = 0

Factor a trinomial.
4((3 + -2x)(3 + -1x)) = 0

Ignore the factor 4.
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 + -1x)' equal to zero and attempt to solve:

Simplifying
3 + -1x = 0

Solving
3 + -1x = 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 + -1x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 0 + -3
-1x = 0 + -3

Combine like terms: 0 + -3 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3
Solution
x = {1.5, 3}