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Simplifying
2x2 + -7 = 57
Reorder the terms:
-7 + 2x2 = 57
Solving
-7 + 2x2 = 57
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '7' to each side of the equation.
-7 + 7 + 2x2 = 57 + 7
Combine like terms: -7 + 7 = 0
0 + 2x2 = 57 + 7
2x2 = 57 + 7
Combine like terms: 57 + 7 = 64
2x2 = 64
Divide each side by '2'.
x2 = 32
Simplifying
x2 = 32
Take the square root of each side:
x = {-5.656854249, 5.656854249}
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