3(x^2+4)-27=0

Solution for 3(x^2+4)-27=0 equation:

Simplifying
3(x2 + 4) + -27 = 0

Reorder the terms:
3(4 + x2) + -27 = 0
(4 * 3 + x2 * 3) + -27 = 0
(12 + 3x2) + -27 = 0

Reorder the terms:
12 + -27 + 3x2 = 0

Combine like terms: 12 + -27 = -15
-15 + 3x2 = 0

Solving
-15 + 3x2 = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 3x2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 3x2 = 0 + 15
3x2 = 0 + 15

Combine like terms: 0 + 15 = 15
3x2 = 15

Divide each side by '3'.
x2 = 5

Simplifying
x2 = 5

Take the square root of each side:
x = {-2.236067978, 2.236067978}