X^2-90=x

Solution for X^2-90=x equation:

Simplifying
X2 + -90 = x

Reorder the terms:
-90 + X2 = x

Solving
-90 + X2 = x

Solving for variable 'X'.

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

Add '90' to each side of the equation.
-90 + 90 + X2 = 90 + x

Combine like terms: -90 + 90 = 0
0 + X2 = 90 + x
X2 = 90 + x

Simplifying
X2 = 90 + x

Reorder the terms:
-90 + X2 + -1x = 90 + x + -90 + -1x

Reorder the terms:
-90 + X2 + -1x = 90 + -90 + x + -1x

Combine like terms: 90 + -90 = 0
-90 + X2 + -1x = 0 + x + -1x
-90 + X2 + -1x = x + -1x

Combine like terms: x + -1x = 0
-90 + X2 + -1x = 0

The solution to this equation could not be determined.