c^2=-20c-100

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Solution for c^2=-20c-100 equation:


Simplifying
c2 = -20c + -100

Reorder the terms:
c2 = -100 + -20c

Solving
c2 = -100 + -20c

Solving for variable 'c'.

Reorder the terms:
100 + 20c + c2 = -100 + -20c + 100 + 20c

Reorder the terms:
100 + 20c + c2 = -100 + 100 + -20c + 20c

Combine like terms: -100 + 100 = 0
100 + 20c + c2 = 0 + -20c + 20c
100 + 20c + c2 = -20c + 20c

Combine like terms: -20c + 20c = 0
100 + 20c + c2 = 0

Factor a trinomial.
(10 + c)(10 + c) = 0

Subproblem 1

Set the factor '(10 + c)' equal to zero and attempt to solve: Simplifying 10 + c = 0 Solving 10 + c = 0 Move all terms containing c to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + c = 0 + -10 Combine like terms: 10 + -10 = 0 0 + c = 0 + -10 c = 0 + -10 Combine like terms: 0 + -10 = -10 c = -10 Simplifying c = -10

Subproblem 2

Set the factor '(10 + c)' equal to zero and attempt to solve: Simplifying 10 + c = 0 Solving 10 + c = 0 Move all terms containing c to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + c = 0 + -10 Combine like terms: 10 + -10 = 0 0 + c = 0 + -10 c = 0 + -10 Combine like terms: 0 + -10 = -10 c = -10 Simplifying c = -10

Solution

c = {-10, -10}

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