3x^2-64-144=0

Solution for 3x^2-64-144=0 equation:

Simplifying
3x2 + -64 + -144 = 0

Reorder the terms:
-64 + -144 + 3x2 = 0

Combine like terms: -64 + -144 = -208
-208 + 3x2 = 0

Solving
-208 + 3x2 = 0

Solving for variable 'x'.

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

Add '208' to each side of the equation.
-208 + 208 + 3x2 = 0 + 208

Combine like terms: -208 + 208 = 0
0 + 3x2 = 0 + 208
3x2 = 0 + 208

Combine like terms: 0 + 208 = 208
3x2 = 208

Divide each side by '3'.
x2 = 69.33333333

Simplifying
x2 = 69.33333333

Take the square root of each side:
x = {-8.326663998, 8.326663998}