cos^8(x)-sen^8(x)=9

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Solution for cos^8(x)-sen^8(x)=9 equation: 


Simplifying
cos8(x) + -1sen8(x) = 9

Multiply cos8 * x
cos8x + -1sen8(x) = 9

Multiply en8s * x
cos8x + -1en8sx = 9

Solving
cos8x + -1en8sx = 9

Solving for variable 'c'.

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

Add 'en8sx' to each side of the equation.
cos8x + -1en8sx + en8sx = 9 + en8sx

Combine like terms: -1en8sx + en8sx = 0
cos8x + 0 = 9 + en8sx
cos8x = 9 + en8sx

Divide each side by 'os8x'.
c = 9o-1s-8x-1 + en8o-1s-7

Simplifying
c = 9o-1s-8x-1 + en8o-1s-7

Reorder the terms:
c = en8o-1s-7 + 9o-1s-8x-1

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