8c+15=-c^2

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Solution for 8c+15=-c^2 equation:


Simplifying
8c + 15 = -1c2

Reorder the terms:
15 + 8c = -1c2

Solving
15 + 8c = -1c2

Solving for variable 'c'.

Combine like terms: -1c2 + c2 = 0
15 + 8c + c2 = 0

Factor a trinomial.
(5 + c)(3 + c) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(3 + c)' equal to zero and attempt to solve: Simplifying 3 + c = 0 Solving 3 + c = 0 Move all terms containing c to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + c = 0 + -3 Combine like terms: 3 + -3 = 0 0 + c = 0 + -3 c = 0 + -3 Combine like terms: 0 + -3 = -3 c = -3 Simplifying c = -3

Solution

c = {-5, -3}

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