-2y^2-8y=8

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


Simplifying
-2y2 + -8y = 8

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

Solving
-8y + -2y2 = 8

Solving for variable 'y'.

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

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

Factor out the Greatest Common Factor (GCF), '-2'.
-2(4 + 4y + y2) = 0

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

Ignore the factor -2.

Subproblem 1

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

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 = {-2, -2}

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