-x^2-31+266=0

Solution for -x^2-31+266=0 equation:

Simplifying
-1x2 + -31 + 266 = 0

Reorder the terms:
-31 + 266 + -1x2 = 0

Combine like terms: -31 + 266 = 235
235 + -1x2 = 0

Solving
235 + -1x2 = 0

Solving for variable 'x'.

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

Add '-235' to each side of the equation.
235 + -235 + -1x2 = 0 + -235

Combine like terms: 235 + -235 = 0
0 + -1x2 = 0 + -235
-1x2 = 0 + -235

Combine like terms: 0 + -235 = -235
-1x2 = -235

Divide each side by '-1'.
x2 = 235

Simplifying
x2 = 235

Take the square root of each side:
x = {-15.329709717, 15.329709717}