(36x^2)+(36x^2)-144=0

Solution for (36x^2)+(36x^2)-144=0 equation:

Simplifying
(36x2) + (36x2) + -144 = 0

Reorder the terms:
-144 + (36x2) + (36x2) = 0

Combine like terms: (36x2) + (36x2) = 72x2
-144 + 72x2 = 0

Solving
-144 + 72x2 = 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 + 72x2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 72x2 = 0 + 144
72x2 = 0 + 144

Combine like terms: 0 + 144 = 144
72x2 = 144

Divide each side by '72'.
x2 = 2

Simplifying
x2 = 2

Take the square root of each side:
x = {-1.414213562, 1.414213562}