Cos^2x+2cosx=0

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


Simplifying
Cos2x + 2cosx = 0

Reorder the terms:
2cosx + os2xC = 0

Solving
2cosx + os2xC = 0

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.
2cosx + os2xC + -1os2xC = 0 + -1os2xC

Combine like terms: os2xC + -1os2xC = 0
2cosx + 0 = 0 + -1os2xC
2cosx = 0 + -1os2xC
Remove the zero:
2cosx = -1os2xC

Divide each side by '2osx'.
c = -0.5sC

Simplifying
c = -0.5sC

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