42.25+x^2=121

Solution for 42.25+x^2=121 equation:

Simplifying
42.25 + x2 = 121

Solving
42.25 + x2 = 121

Solving for variable 'x'.

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

Add '-42.25' to each side of the equation.
42.25 + -42.25 + x2 = 121 + -42.25

Combine like terms: 42.25 + -42.25 = 0.00
0.00 + x2 = 121 + -42.25
x2 = 121 + -42.25

Combine like terms: 121 + -42.25 = 78.75
x2 = 78.75

Simplifying
x2 = 78.75

Take the square root of each side:
x = {-8.874119675, 8.874119675}