3x^2-20=-8

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Solution for 3x^2-20=-8 equation: 


Simplifying
3x2 + -20 = -8

Reorder the terms:
-20 + 3x2 = -8

Solving
-20 + 3x2 = -8

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 3x2 = -8 + 20

Combine like terms: -20 + 20 = 0
0 + 3x2 = -8 + 20
3x2 = -8 + 20

Combine like terms: -8 + 20 = 12
3x2 = 12

Divide each side by '3'.
x2 = 4

Simplifying
x2 = 4

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

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