(x+6)x-2(x+6)=0

Solution for (x+6)x-2(x+6)=0 equation:

Simplifying
(x + 6) * x + -2(x + 6) = 0

Reorder the terms:
(6 + x) * x + -2(x + 6) = 0

Reorder the terms for easier multiplication:
x(6 + x) + -2(x + 6) = 0
(6 * x + x * x) + -2(x + 6) = 0
(6x + x2) + -2(x + 6) = 0

Reorder the terms:
6x + x2 + -2(6 + x) = 0
6x + x2 + (6 * -2 + x * -2) = 0
6x + x2 + (-12 + -2x) = 0

Reorder the terms:
-12 + 6x + -2x + x2 = 0

Combine like terms: 6x + -2x = 4x
-12 + 4x + x2 = 0

Solving
-12 + 4x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-6 + -1x)(2 + -1x) = 0

Subproblem 1
Set the factor '(-6 + -1x)' equal to zero and attempt to solve:

Simplifying
-6 + -1x = 0

Solving
-6 + -1x = 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 + -1x = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = 0 + 6
-1x = 0 + 6

Combine like terms: 0 + 6 = 6
-1x = 6

Divide each side by '-1'.
x = -6

Simplifying
x = -6
Subproblem 2
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

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

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
Solution
x = {-6, 2}