12x^2-28+15=0

Solution for 12x^2-28+15=0 equation:

Simplifying
12x2 + -28 + 15 = 0

Reorder the terms:
-28 + 15 + 12x2 = 0

Combine like terms: -28 + 15 = -13
-13 + 12x2 = 0

Solving
-13 + 12x2 = 0

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 12x2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 12x2 = 0 + 13
12x2 = 0 + 13

Combine like terms: 0 + 13 = 13
12x2 = 13

Divide each side by '12'.
x2 = 1.083333333

Simplifying
x2 = 1.083333333

Take the square root of each side:
x = {-1.040833, 1.040833}