x^2-1-42=0

Solution for x^2-1-42=0 equation:

Simplifying
x2 + -1 + -42 = 0

Reorder the terms:
-1 + -42 + x2 = 0

Combine like terms: -1 + -42 = -43
-43 + x2 = 0

Solving
-43 + x2 = 0

Solving for variable 'x'.

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

Add '43' to each side of the equation.
-43 + 43 + x2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + x2 = 0 + 43
x2 = 0 + 43

Combine like terms: 0 + 43 = 43
x2 = 43

Simplifying
x2 = 43

Take the square root of each side:
x = {-6.557438524, 6.557438524}