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Simplifying
3x2 + -118 = 20
Reorder the terms:
-118 + 3x2 = 20
Solving
-118 + 3x2 = 20
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '118' to each side of the equation.
-118 + 118 + 3x2 = 20 + 118
Combine like terms: -118 + 118 = 0
0 + 3x2 = 20 + 118
3x2 = 20 + 118
Combine like terms: 20 + 118 = 138
3x2 = 138
Divide each side by '3'.
x2 = 46
Simplifying
x2 = 46
Take the square root of each side:
x = {-6.782329983, 6.782329983}
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