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Simplifying
12 + -3x2 + 5 = 0
Reorder the terms:
12 + 5 + -3x2 = 0
Combine like terms: 12 + 5 = 17
17 + -3x2 = 0
Solving
17 + -3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-17' to each side of the equation.
17 + -17 + -3x2 = 0 + -17
Combine like terms: 17 + -17 = 0
0 + -3x2 = 0 + -17
-3x2 = 0 + -17
Combine like terms: 0 + -17 = -17
-3x2 = -17
Divide each side by '-3'.
x2 = 5.666666667
Simplifying
x2 = 5.666666667
Take the square root of each side:
x = {-2.380476143, 2.380476143}
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