x*x-121=

Solution for x*x-121= equation:

Simplifying
x * x + -121 = 0

Multiply x * x
x2 + -121 = 0

Reorder the terms:
-121 + x2 = 0

Solving
-121 + x2 = 0

Solving for variable 'x'.

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

Add '121' to each side of the equation.
-121 + 121 + x2 = 0 + 121

Combine like terms: -121 + 121 = 0
0 + x2 = 0 + 121
x2 = 0 + 121

Combine like terms: 0 + 121 = 121
x2 = 121

Simplifying
x2 = 121

Take the square root of each side:
x = {-11, 11}