12x^2-39+9=0

Solution for 12x^2-39+9=0 equation:

Simplifying
12x2 + -39 + 9 = 0

Reorder the terms:
-39 + 9 + 12x2 = 0

Combine like terms: -39 + 9 = -30
-30 + 12x2 = 0

Solving
-30 + 12x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '30' to each side of the equation.
-30 + 30 + 12x2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 12x2 = 0 + 30
12x2 = 0 + 30

Combine like terms: 0 + 30 = 30
12x2 = 30

Divide each side by '12'.
x2 = 2.5

Simplifying
x2 = 2.5

Take the square root of each side:
x = {-1.58113883, 1.58113883}