144=(x)(2x)

Solution for 144=(x)(2x) equation:

Simplifying
144 = (x)(2x)

Remove parenthesis around (2x)
144 = x * 2x

Reorder the terms for easier multiplication:
144 = 2x * x

Multiply x * x
144 = 2x2

Solving
144 = 2x2

Solving for variable 'x'.

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

Add '-2x2' to each side of the equation.
144 + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
144 + -2x2 = 0

Add '-144' to each side of the equation.
144 + -144 + -2x2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -2x2 = 0 + -144
-2x2 = 0 + -144

Combine like terms: 0 + -144 = -144
-2x2 = -144

Divide each side by '-2'.
x2 = 72

Simplifying
x2 = 72

Take the square root of each side:
x = {-8.485281374, 8.485281374}