128=x^2

Solution for 128=x^2 equation:

Simplifying
128 = x2

Solving
128 = x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
128 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
128 + -1x2 = 0

Add '-128' to each side of the equation.
128 + -128 + -1x2 = 0 + -128

Combine like terms: 128 + -128 = 0
0 + -1x2 = 0 + -128
-1x2 = 0 + -128

Combine like terms: 0 + -128 = -128
-1x2 = -128

Divide each side by '-1'.
x2 = 128

Simplifying
x2 = 128

Take the square root of each side:
x = {-11.313708499, 11.313708499}