2x^2-13-31=0

Solution for 2x^2-13-31=0 equation:

Simplifying
2x2 + -13 + -31 = 0

Reorder the terms:
-13 + -31 + 2x2 = 0

Combine like terms: -13 + -31 = -44
-44 + 2x2 = 0

Solving
-44 + 2x2 = 0

Solving for variable 'x'.

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

Add '44' to each side of the equation.
-44 + 44 + 2x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 2x2 = 0 + 44
2x2 = 0 + 44

Combine like terms: 0 + 44 = 44
2x2 = 44

Divide each side by '2'.
x2 = 22

Simplifying
x2 = 22

Take the square root of each side:
x = {-4.69041576, 4.69041576}