(x+6)(x(-3))=

Solution for (x+6)(x(-3))= equation:

Simplifying
(x + 6)(x(-3)) = 0

Reorder the terms:
(6 + x)(x(-3)) = 0

Reorder the terms for easier multiplication:
(6 + x)(-3x) = 0

Remove parenthesis around (-3x)
(6 + x) * -3x = 0

Reorder the terms for easier multiplication:
-3x(6 + x) = 0
(6 * -3x + x * -3x) = 0
(-18x + -3x2) = 0

Solving
-18x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-3x'.
-3x(6 + x) = 0

Ignore the factor -3.
Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0
Subproblem 2
Set the factor '(6 + x)' equal to zero and attempt to solve:

Simplifying
6 + x = 0

Solving
6 + x = 0

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

Add '-6' to each side of the equation.
6 + -6 + x = 0 + -6

Combine like terms: 6 + -6 = 0
0 + x = 0 + -6
x = 0 + -6

Combine like terms: 0 + -6 = -6
x = -6

Simplifying
x = -6
Solution
x = {0, -6}