2cos^2x+7cosx=4

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Solution for 2cos^2x+7cosx=4 equation: 


Simplifying
2cos2x + 7cosx = 4

Reorder the terms:
7cosx + 2cos2x = 4

Solving
7cosx + 2cos2x = 4

Solving for variable 'c'.

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

Reorder the terms:
-4 + 7cosx + 2cos2x = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + 7cosx + 2cos2x = 0

The solution to this equation could not be determined.

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