2x^2+2=20

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Solution for 2x^2+2=20 equation: 


Simplifying
2x2 + 2 = 20

Reorder the terms:
2 + 2x2 = 20

Solving
2 + 2x2 = 20

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x2 = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 2x2 = 20 + -2
2x2 = 20 + -2

Combine like terms: 20 + -2 = 18
2x2 = 18

Divide each side by '2'.
x2 = 9

Simplifying
x2 = 9

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

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