-1=2-x^2

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

Simplifying
-1 = 2 + -1x2

Solving
-1 = 2 + -1x2

Solving for variable 'x'.

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

Add 'x2' to each side of the equation.
-1 + x2 = 2 + -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-1 + x2 = 2 + 0
-1 + x2 = 2

Add '1' to each side of the equation.
-1 + 1 + x2 = 2 + 1

Combine like terms: -1 + 1 = 0
0 + x2 = 2 + 1
x2 = 2 + 1

Combine like terms: 2 + 1 = 3
x2 = 3

Simplifying
x2 = 3

Take the square root of each side:
x = {-1.732050808, 1.732050808}