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Simplifying
3x2 + 5 + -120 = 0
Reorder the terms:
5 + -120 + 3x2 = 0
Combine like terms: 5 + -120 = -115
-115 + 3x2 = 0
Solving
-115 + 3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '115' to each side of the equation.
-115 + 115 + 3x2 = 0 + 115
Combine like terms: -115 + 115 = 0
0 + 3x2 = 0 + 115
3x2 = 0 + 115
Combine like terms: 0 + 115 = 115
3x2 = 115
Divide each side by '3'.
x2 = 38.33333333
Simplifying
x2 = 38.33333333
Take the square root of each side:
x = {-6.191391873, 6.191391873}
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