2x^2+30=158

Solution for 2x^2+30=158 equation:

Simplifying
2x2 + 30 = 158

Reorder the terms:
30 + 2x2 = 158

Solving
30 + 2x2 = 158

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 2x2 = 158 + -30

Combine like terms: 30 + -30 = 0
0 + 2x2 = 158 + -30
2x2 = 158 + -30

Combine like terms: 158 + -30 = 128
2x2 = 128

Divide each side by '2'.
x2 = 64

Simplifying
x2 = 64

Take the square root of each side:
x = {-8, 8}