3x^2-65=86

Solution for 3x^2-65=86 equation:

Simplifying
3x2 + -65 = 86

Reorder the terms:
-65 + 3x2 = 86

Solving
-65 + 3x2 = 86

Solving for variable 'x'.

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

Add '65' to each side of the equation.
-65 + 65 + 3x2 = 86 + 65

Combine like terms: -65 + 65 = 0
0 + 3x2 = 86 + 65
3x2 = 86 + 65

Combine like terms: 86 + 65 = 151
3x2 = 151

Divide each side by '3'.
x2 = 50.33333333

Simplifying
x2 = 50.33333333

Take the square root of each side:
x = {-7.094598884, 7.094598884}