-30=-x^2

Solution for -30=-x^2 equation:

Simplifying
-30 = -1x2

Solving
-30 = -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.
-30 + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-30 + x2 = 0

Add '30' to each side of the equation.
-30 + 30 + x2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + x2 = 0 + 30
x2 = 0 + 30

Combine like terms: 0 + 30 = 30
x2 = 30

Simplifying
x2 = 30

Take the square root of each side:
x = {-5.477225575, 5.477225575}