3x^2-5-12=0

Solution for 3x^2-5-12=0 equation:

Simplifying
3x2 + -5 + -12 = 0

Reorder the terms:
-5 + -12 + 3x2 = 0

Combine like terms: -5 + -12 = -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}