22=4+2x^2

Solution for 22=4+2x^2 equation:

Simplifying
22 = 4 + 2x2

Solving
22 = 4 + 2x2

Solving for variable 'x'.

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

Add '-2x2' to each side of the equation.
22 + -2x2 = 4 + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
22 + -2x2 = 4 + 0
22 + -2x2 = 4

Add '-22' to each side of the equation.
22 + -22 + -2x2 = 4 + -22

Combine like terms: 22 + -22 = 0
0 + -2x2 = 4 + -22
-2x2 = 4 + -22

Combine like terms: 4 + -22 = -18
-2x2 = -18

Divide each side by '-2'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}