-2x^2+338=0

Solution for -2x^2+338=0 equation:

Simplifying
-2x2 + 338 = 0

Reorder the terms:
338 + -2x2 = 0

Solving
338 + -2x2 = 0

Solving for variable 'x'.

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

Add '-338' to each side of the equation.
338 + -338 + -2x2 = 0 + -338

Combine like terms: 338 + -338 = 0
0 + -2x2 = 0 + -338
-2x2 = 0 + -338

Combine like terms: 0 + -338 = -338
-2x2 = -338

Divide each side by '-2'.
x2 = 169

Simplifying
x2 = 169

Take the square root of each side:
x = {-13, 13}