x*x-10=71

Solution for x*x-10=71 equation:

Simplifying
x * x + -10 = 71

Multiply x * x
x2 + -10 = 71

Reorder the terms:
-10 + x2 = 71

Solving
-10 + x2 = 71

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + x2 = 71 + 10

Combine like terms: -10 + 10 = 0
0 + x2 = 71 + 10
x2 = 71 + 10

Combine like terms: 71 + 10 = 81
x2 = 81

Simplifying
x2 = 81

Take the square root of each side:
x = {-9, 9}