189=12x(x)

Solution for 189=12x(x) equation:

Simplifying
189 = 12x(x)

Multiply x * x
189 = 12x2

Solving
189 = 12x2

Solving for variable 'x'.

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

Add '-12x2' to each side of the equation.
189 + -12x2 = 12x2 + -12x2

Combine like terms: 12x2 + -12x2 = 0
189 + -12x2 = 0

Add '-189' to each side of the equation.
189 + -189 + -12x2 = 0 + -189

Combine like terms: 189 + -189 = 0
0 + -12x2 = 0 + -189
-12x2 = 0 + -189

Combine like terms: 0 + -189 = -189
-12x2 = -189

Divide each side by '-12'.
x2 = 15.75

Simplifying
x2 = 15.75

Take the square root of each side:
x = {-3.968626967, 3.968626967}