6x^2-21-12=0

Solution for 6x^2-21-12=0 equation:

Simplifying
6x2 + -21 + -12 = 0

Reorder the terms:
-21 + -12 + 6x2 = 0

Combine like terms: -21 + -12 = -33
-33 + 6x2 = 0

Solving
-33 + 6x2 = 0

Solving for variable 'x'.

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

Add '33' to each side of the equation.
-33 + 33 + 6x2 = 0 + 33

Combine like terms: -33 + 33 = 0
0 + 6x2 = 0 + 33
6x2 = 0 + 33

Combine like terms: 0 + 33 = 33
6x2 = 33

Divide each side by '6'.
x2 = 5.5

Simplifying
x2 = 5.5

Take the square root of each side:
x = {-2.34520788, 2.34520788}