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Simplifying
3x2 + -12x2 + 36 + 8 = 0
Reorder the terms:
36 + 8 + 3x2 + -12x2 = 0
Combine like terms: 36 + 8 = 44
44 + 3x2 + -12x2 = 0
Combine like terms: 3x2 + -12x2 = -9x2
44 + -9x2 = 0
Solving
44 + -9x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-44' to each side of the equation.
44 + -44 + -9x2 = 0 + -44
Combine like terms: 44 + -44 = 0
0 + -9x2 = 0 + -44
-9x2 = 0 + -44
Combine like terms: 0 + -44 = -44
-9x2 = -44
Divide each side by '-9'.
x2 = 4.888888889
Simplifying
x2 = 4.888888889
Take the square root of each side:
x = {-2.211083194, 2.211083194}
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