C^2+4C=-4

Solution for C^2+4C=-4 equation:

Simplifying
C2 + 4C = -4

Reorder the terms:
4C + C2 = -4

Solving
4C + C2 = -4

Solving for variable 'C'.

Reorder the terms:
4 + 4C + C2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + 4C + C2 = 0

Factor a trinomial.
(2 + C)(2 + C) = 0

Subproblem 1
Set the factor '(2 + C)' equal to zero and attempt to solve:

Simplifying
2 + C = 0

Solving
2 + C = 0

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

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

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

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

Simplifying
C = -2
Subproblem 2
Set the factor '(2 + C)' equal to zero and attempt to solve:

Simplifying
2 + C = 0

Solving
2 + C = 0

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

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

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

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

Simplifying
C = -2
Solution
C = {-2, -2}