[x^2-1]=10

Solution for [x^2-1]=10 equation:

Simplifying
[x2 + -1] = 10

Reorder the terms:
[-1 + x2] = 10

Remove brackets around [-1 + x2]
-1 + x2 = 10

Solving
-1 + x2 = 10

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + x2 = 10 + 1

Combine like terms: -1 + 1 = 0
0 + x2 = 10 + 1
x2 = 10 + 1

Combine like terms: 10 + 1 = 11
x2 = 11

Simplifying
x2 = 11

Take the square root of each side:
x = {-3.31662479, 3.31662479}