4cos^2x=3-9cosx

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Solution for 4cos^2x=3-9cosx equation:


Simplifying
4cos2x = 3 + -9cosx

Solving
4cos2x = 3 + -9cosx

Solving for variable 'c'.

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

Add '9cosx' to each side of the equation.
9cosx + 4cos2x = 3 + -9cosx + 9cosx

Combine like terms: -9cosx + 9cosx = 0
9cosx + 4cos2x = 3 + 0
9cosx + 4cos2x = 3

Reorder the terms:
-3 + 9cosx + 4cos2x = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 9cosx + 4cos2x = 0

The solution to this equation could not be determined.

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