3(9-4x^2)=0

Solution for 3(9-4x^2)=0 equation:

Simplifying
3(9 + -4x2) = 0
(9 * 3 + -4x2 * 3) = 0
(27 + -12x2) = 0

Solving
27 + -12x2 = 0

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 + -12x2 = 0 + -27

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

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

Divide each side by '-12'.
x2 = 2.25

Simplifying
x2 = 2.25

Take the square root of each side:
x = {-1.5, 1.5}