144=9x*4x

Solution for 144=9x*4x equation:

Simplifying
144 = 9x * 4x

Reorder the terms for easier multiplication:
144 = 9 * 4x * x

Multiply 9 * 4
144 = 36x * x

Multiply x * x
144 = 36x2

Solving
144 = 36x2

Solving for variable 'x'.

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

Add '-36x2' to each side of the equation.
144 + -36x2 = 36x2 + -36x2

Combine like terms: 36x2 + -36x2 = 0
144 + -36x2 = 0

Add '-144' to each side of the equation.
144 + -144 + -36x2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -36x2 = 0 + -144
-36x2 = 0 + -144

Combine like terms: 0 + -144 = -144
-36x2 = -144

Divide each side by '-36'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}