2x^2-242=0

Solution for 2x^2-242=0 equation:

Simplifying
2x2 + -242 = 0

Reorder the terms:
-242 + 2x2 = 0

Solving
-242 + 2x2 = 0

Solving for variable 'x'.

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

Add '242' to each side of the equation.
-242 + 242 + 2x2 = 0 + 242

Combine like terms: -242 + 242 = 0
0 + 2x2 = 0 + 242
2x2 = 0 + 242

Combine like terms: 0 + 242 = 242
2x2 = 242

Divide each side by '2'.
x2 = 121

Simplifying
x2 = 121

Take the square root of each side:
x = {-11, 11}