9x^2-144=

Solution for 9x^2-144= equation:

Simplifying
9x2 + -144 = 0

Reorder the terms:
-144 + 9x2 = 0

Solving
-144 + 9x2 = 0

Solving for variable 'x'.

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

Add '144' to each side of the equation.
-144 + 144 + 9x2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 9x2 = 0 + 144
9x2 = 0 + 144

Combine like terms: 0 + 144 = 144
9x2 = 144

Divide each side by '9'.
x2 = 16

Simplifying
x2 = 16

Take the square root of each side:
x = {-4, 4}