y^2+4y=-8-2y

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Solution for y^2+4y=-8-2y equation: 


Simplifying
y2 + 4y = -8 + -2y

Reorder the terms:
4y + y2 = -8 + -2y

Solving
4y + y2 = -8 + -2y

Solving for variable 'y'.

Reorder the terms:
8 + 4y + 2y + y2 = -8 + -2y + 8 + 2y

Combine like terms: 4y + 2y = 6y
8 + 6y + y2 = -8 + -2y + 8 + 2y

Reorder the terms:
8 + 6y + y2 = -8 + 8 + -2y + 2y

Combine like terms: -8 + 8 = 0
8 + 6y + y2 = 0 + -2y + 2y
8 + 6y + y2 = -2y + 2y

Combine like terms: -2y + 2y = 0
8 + 6y + y2 = 0

Factor a trinomial.
(4 + y)(2 + y) = 0


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

Simplifying
4 + y = 0

Solving
4 + y = 0

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

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

Combine like terms: 4 + -4 = 0
0 + y = 0 + -4
y = 0 + -4

Combine like terms: 0 + -4 = -4
y = -4

Simplifying
y = -4

Subproblem 2
Set the factor '(2 + y)' equal to zero and attempt to solve:

Simplifying
2 + y = 0

Solving
2 + y = 0

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

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

Combine like terms: 2 + -2 = 0
0 + y = 0 + -2
y = 0 + -2

Combine like terms: 0 + -2 = -2
y = -2

Simplifying
y = -2
Solution
y = {-4, -2}

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