Cos^2x+6cosx+5=0

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Solution for Cos^2x+6cosx+5=0 equation: 


Simplifying
Cos2x + 6cosx + 5 = 0

Reorder the terms:
5 + 6cosx + os2xC = 0

Solving
5 + 6cosx + os2xC = 0

Solving for variable 'c'.

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

Add '-5' to each side of the equation.
5 + 6cosx + -5 + os2xC = 0 + -5

Reorder the terms:
5 + -5 + 6cosx + os2xC = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 6cosx + os2xC = 0 + -5
6cosx + os2xC = 0 + -5

Combine like terms: 0 + -5 = -5
6cosx + os2xC = -5

Add '-1os2xC' to each side of the equation.
6cosx + os2xC + -1os2xC = -5 + -1os2xC

Combine like terms: os2xC + -1os2xC = 0
6cosx + 0 = -5 + -1os2xC
6cosx = -5 + -1os2xC

Divide each side by '6osx'.
c = -0.8333333333o-1s-1x-1 + -0.1666666667sC

Simplifying
c = -0.8333333333o-1s-1x-1 + -0.1666666667sC

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