2x^2-55=0

Solution for 2x^2-55=0 equation:

Simplifying
2x2 + -55 = 0

Reorder the terms:
-55 + 2x2 = 0

Solving
-55 + 2x2 = 0

Solving for variable 'x'.

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

Add '55' to each side of the equation.
-55 + 55 + 2x2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 2x2 = 0 + 55
2x2 = 0 + 55

Combine like terms: 0 + 55 = 55
2x2 = 55

Divide each side by '2'.
x2 = 27.5

Simplifying
x2 = 27.5

Take the square root of each side:
x = {-5.244044241, 5.244044241}