8cos^2x+cosx=9

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Solution for 8cos^2x+cosx=9 equation: 


Simplifying
8cos2x + cosx = 9

Reorder the terms:
cosx + 8cos2x = 9

Solving
cosx + 8cos2x = 9

Solving for variable 'c'.

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

Reorder the terms:
-9 + cosx + 8cos2x = 9 + -9

Combine like terms: 9 + -9 = 0
-9 + cosx + 8cos2x = 0

The solution to this equation could not be determined.

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