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Simplifying
3x2 + -57 = 60
Reorder the terms:
-57 + 3x2 = 60
Solving
-57 + 3x2 = 60
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 + 3x2 = 60 + 57
Combine like terms: -57 + 57 = 0
0 + 3x2 = 60 + 57
3x2 = 60 + 57
Combine like terms: 60 + 57 = 117
3x2 = 117
Divide each side by '3'.
x2 = 39
Simplifying
x2 = 39
Take the square root of each side:
x = {-6.244997998, 6.244997998}
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