8x^2-64-72=0

Solution for 8x^2-64-72=0 equation:

Simplifying
8x2 + -64 + -72 = 0

Reorder the terms:
-64 + -72 + 8x2 = 0

Combine like terms: -64 + -72 = -136
-136 + 8x2 = 0

Solving
-136 + 8x2 = 0

Solving for variable 'x'.

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

Add '136' to each side of the equation.
-136 + 136 + 8x2 = 0 + 136

Combine like terms: -136 + 136 = 0
0 + 8x2 = 0 + 136
8x2 = 0 + 136

Combine like terms: 0 + 136 = 136
8x2 = 136

Divide each side by '8'.
x2 = 17

Simplifying
x2 = 17

Take the square root of each side:
x = {-4.123105626, 4.123105626}