x(6+x)-2(x+1)-5x=4

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Solution for x(6+x)-2(x+1)-5x=4 equation: 


Simplifying
x(6 + x) + -2(x + 1) + -5x = 4
(6 * x + x * x) + -2(x + 1) + -5x = 4
(6x + x2) + -2(x + 1) + -5x = 4

Reorder the terms:
6x + x2 + -2(1 + x) + -5x = 4
6x + x2 + (1 * -2 + x * -2) + -5x = 4
6x + x2 + (-2 + -2x) + -5x = 4

Reorder the terms:
-2 + 6x + -2x + -5x + x2 = 4

Combine like terms: 6x + -2x = 4x
-2 + 4x + -5x + x2 = 4

Combine like terms: 4x + -5x = -1x
-2 + -1x + x2 = 4

Solving
-2 + -1x + x2 = 4

Solving for variable 'x'.

Reorder the terms:
-2 + -4 + -1x + x2 = 4 + -4

Combine like terms: -2 + -4 = -6
-6 + -1x + x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-6 + -1x + x2 = 0

Factor a trinomial.
(-2 + -1x)(3 + -1x) = 0


Subproblem 1
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

Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve:

Simplifying
3 + -1x = 0

Solving
3 + -1x = 0

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

Add '-3' to each side of the equation.
3 + -3 + -1x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 0 + -3
-1x = 0 + -3

Combine like terms: 0 + -3 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3
Solution
x = {-2, 3}

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