2(2cos^2x+cosx)=-3

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Solution for 2(2cos^2x+cosx)=-3 equation: 


Simplifying
2(2cos2x + cosx) = -3

Reorder the terms:
2(cosx + 2cos2x) = -3
(cosx * 2 + 2cos2x * 2) = -3
(2cosx + 4cos2x) = -3

Solving
2cosx + 4cos2x = -3

Solving for variable 'c'.

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

Reorder the terms:
3 + 2cosx + 4cos2x = -3 + 3

Combine like terms: -3 + 3 = 0
3 + 2cosx + 4cos2x = 0

The solution to this equation could not be determined.

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