3(x^2+9)=60

Solution for 3(x^2+9)=60 equation:

Simplifying
3(x2 + 9) = 60

Reorder the terms:
3(9 + x2) = 60
(9 * 3 + x2 * 3) = 60
(27 + 3x2) = 60

Solving
27 + 3x2 = 60

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 3x2 = 60 + -27

Combine like terms: 27 + -27 = 0
0 + 3x2 = 60 + -27
3x2 = 60 + -27

Combine like terms: 60 + -27 = 33
3x2 = 33

Divide each side by '3'.
x2 = 11

Simplifying
x2 = 11

Take the square root of each side:
x = {-3.31662479, 3.31662479}