3x^2+6=86

Solution for 3x^2+6=86 equation:

Simplifying
3x2 + 6 = 86

Reorder the terms:
6 + 3x2 = 86

Solving
6 + 3x2 = 86

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 3x2 = 86 + -6

Combine like terms: 6 + -6 = 0
0 + 3x2 = 86 + -6
3x2 = 86 + -6

Combine like terms: 86 + -6 = 80
3x2 = 80

Divide each side by '3'.
x2 = 26.66666667

Simplifying
x2 = 26.66666667

Take the square root of each side:
x = {-5.163977795, 5.163977795}