Cos^2x-5cosx=-2

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Solution for Cos^2x-5cosx=-2 equation: 


Simplifying
Cos2x + -5cosx = -2

Reorder the terms:
-5cosx + os2xC = -2

Solving
-5cosx + os2xC = -2

Solving for variable 'c'.

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

Add '-1os2xC' to each side of the equation.
-5cosx + os2xC + -1os2xC = -2 + -1os2xC

Combine like terms: os2xC + -1os2xC = 0
-5cosx + 0 = -2 + -1os2xC
-5cosx = -2 + -1os2xC

Divide each side by '-5osx'.
c = 0.4o-1s-1x-1 + 0.2sC

Simplifying
c = 0.4o-1s-1x-1 + 0.2sC

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