42.25=x^2

Solution for 42.25=x^2 equation:

Simplifying
42.25 = x2

Solving
42.25 = 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.
42.25 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
42.25 + -1x2 = 0

Add '-42.25' to each side of the equation.
42.25 + -42.25 + -1x2 = 0 + -42.25

Combine like terms: 42.25 + -42.25 = 0.00
0.00 + -1x2 = 0 + -42.25
-1x2 = 0 + -42.25

Combine like terms: 0 + -42.25 = -42.25
-1x2 = -42.25

Divide each side by '-1'.
x2 = 42.25

Simplifying
x2 = 42.25

Take the square root of each side:
x = {-6.5, 6.5}