x^2-28-128=0

Solution for x^2-28-128=0 equation:

Simplifying
x2 + -28 + -128 = 0

Reorder the terms:
-28 + -128 + x2 = 0

Combine like terms: -28 + -128 = -156
-156 + x2 = 0

Solving
-156 + x2 = 0

Solving for variable 'x'.

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

Add '156' to each side of the equation.
-156 + 156 + x2 = 0 + 156

Combine like terms: -156 + 156 = 0
0 + x2 = 0 + 156
x2 = 0 + 156

Combine like terms: 0 + 156 = 156
x2 = 156

Simplifying
x2 = 156

Take the square root of each side:
x = {-12.489995997, 12.489995997}