4cos^22x+8cos^2x=7

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Solution for 4cos^22x+8cos^2x=7 equation: 


Simplifying
4cos22x + 8cos2x = 7

Reorder the terms:
8cos2x + 4cos22x = 7

Solving
8cos2x + 4cos22x = 7

Solving for variable 'c'.

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

Reorder the terms:
-7 + 8cos2x + 4cos22x = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + 8cos2x + 4cos22x = 0

The solution to this equation could not be determined.

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