8+2x^2=16

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Solution for 8+2x^2=16 equation: 


Simplifying
8 + 2x2 = 16

Solving
8 + 2x2 = 16

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 = 16 + -8

Combine like terms: 8 + -8 = 0
0 + 2x2 = 16 + -8
2x2 = 16 + -8

Combine like terms: 16 + -8 = 8
2x2 = 8

Divide each side by '2'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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