Cos(4x)-7Cos(2x)=8

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Solution for Cos(4x)-7Cos(2x)=8 equation: 


Simplifying
Cos(4x) + -7Cos(2x) = 8

Remove parenthesis around (4x)
osC * 4x + -7Cos(2x) = 8

Reorder the terms for easier multiplication:
4osC * x + -7Cos(2x) = 8

Multiply osC * x
4osxC + -7Cos(2x) = 8

Remove parenthesis around (2x)
4osxC + -7osC * 2x = 8

Reorder the terms for easier multiplication:
4osxC + -7 * 2osC * x = 8

Multiply -7 * 2
4osxC + -14osC * x = 8

Multiply osC * x
4osxC + -14osxC = 8

Combine like terms: 4osxC + -14osxC = -10osxC
-10osxC = 8

Solving
-10osxC = 8

Solving for variable 'o'.

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

Divide each side by '-10sxC'.
o = -0.8s-1x-1C-1

Simplifying
o = -0.8s-1x-1C-1

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