2x^2-6=66

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Solution for 2x^2-6=66 equation: 


Simplifying
2x2 + -6 = 66

Reorder the terms:
-6 + 2x2 = 66

Solving
-6 + 2x2 = 66

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 2x2 = 66 + 6

Combine like terms: -6 + 6 = 0
0 + 2x2 = 66 + 6
2x2 = 66 + 6

Combine like terms: 66 + 6 = 72
2x2 = 72

Divide each side by '2'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}

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