y^2+13y=-40

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Solution for y^2+13y=-40 equation:


Simplifying
y2 + 13y = -40

Reorder the terms:
13y + y2 = -40

Solving
13y + y2 = -40

Solving for variable 'y'.

Reorder the terms:
40 + 13y + y2 = -40 + 40

Combine like terms: -40 + 40 = 0
40 + 13y + y2 = 0

Factor a trinomial.
(8 + y)(5 + y) = 0

Subproblem 1

Set the factor '(8 + y)' equal to zero and attempt to solve: Simplifying 8 + y = 0 Solving 8 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + y = 0 + -8 Combine like terms: 8 + -8 = 0 0 + y = 0 + -8 y = 0 + -8 Combine like terms: 0 + -8 = -8 y = -8 Simplifying y = -8

Subproblem 2

Set the factor '(5 + y)' equal to zero and attempt to solve: Simplifying 5 + y = 0 Solving 5 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + y = 0 + -5 y = 0 + -5 Combine like terms: 0 + -5 = -5 y = -5 Simplifying y = -5

Solution

y = {-8, -5}

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