2cos^2x+11cosx=-5

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Solution for 2cos^2x+11cosx=-5 equation: 


Simplifying
2cos2x + 11cosx = -5

Reorder the terms:
11cosx + 2cos2x = -5

Solving
11cosx + 2cos2x = -5

Solving for variable 'c'.

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

Reorder the terms:
5 + 11cosx + 2cos2x = -5 + 5

Combine like terms: -5 + 5 = 0
5 + 11cosx + 2cos2x = 0

The solution to this equation could not be determined.

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