2x^2+8=72

Solution for 2x^2+8=72 equation:

Simplifying
2x2 + 8 = 72

Reorder the terms:
8 + 2x2 = 72

Solving
8 + 2x2 = 72

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 2x2 = 72 + -8

Combine like terms: 8 + -8 = 0
0 + 2x2 = 72 + -8
2x2 = 72 + -8

Combine like terms: 72 + -8 = 64
2x2 = 64

Divide each side by '2'.
x2 = 32

Simplifying
x2 = 32

Take the square root of each side:
x = {-5.656854249, 5.656854249}