2x^2-57=15

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Solution for 2x^2-57=15 equation: 


Simplifying
2x2 + -57 = 15

Reorder the terms:
-57 + 2x2 = 15

Solving
-57 + 2x2 = 15

Solving for variable 'x'.

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

Add '57' to each side of the equation.
-57 + 57 + 2x2 = 15 + 57

Combine like terms: -57 + 57 = 0
0 + 2x2 = 15 + 57
2x2 = 15 + 57

Combine like terms: 15 + 57 = 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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