(x+1)(x+2)=6

Solution for (x+1)(x+2)=6 equation:

Simplifying
(x + 1)(x + 2) = 6

Reorder the terms:
(1 + x)(x + 2) = 6

Reorder the terms:
(1 + x)(2 + x) = 6

Multiply (1 + x) * (2 + x)
(1(2 + x) + x(2 + x)) = 6
((2 * 1 + x * 1) + x(2 + x)) = 6
((2 + 1x) + x(2 + x)) = 6
(2 + 1x + (2 * x + x * x)) = 6
(2 + 1x + (2x + x2)) = 6

Combine like terms: 1x + 2x = 3x
(2 + 3x + x2) = 6

Solving
2 + 3x + x2 = 6

Solving for variable 'x'.

Reorder the terms:
2 + -6 + 3x + x2 = 6 + -6

Combine like terms: 2 + -6 = -4
-4 + 3x + x2 = 6 + -6

Combine like terms: 6 + -6 = 0
-4 + 3x + x2 = 0

Factor a trinomial.
(-4 + -1x)(1 + -1x) = 0

Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve:

Simplifying
-4 + -1x = 0

Solving
-4 + -1x = 0

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

Add '4' to each side of the equation.
-4 + 4 + -1x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1x = 0 + 4
-1x = 0 + 4

Combine like terms: 0 + 4 = 4
-1x = 4

Divide each side by '-1'.
x = -4

Simplifying
x = -4
Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

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

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

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

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

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

Simplifying
x = 1
Solution
x = {-4, 1}