8cos^2x-3=2cosx

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Solution for 8cos^2x-3=2cosx equation:


Simplifying
8cos2x + -3 = 2cosx

Reorder the terms:
-3 + 8cos2x = 2cosx

Solving
-3 + 8cos2x = 2cosx

Solving for variable 'c'.

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

Add '-2cosx' to each side of the equation.
-3 + -2cosx + 8cos2x = 2cosx + -2cosx

Combine like terms: 2cosx + -2cosx = 0
-3 + -2cosx + 8cos2x = 0

Add '3' to each side of the equation.
-3 + -2cosx + 3 + 8cos2x = 0 + 3

Reorder the terms:
-3 + 3 + -2cosx + 8cos2x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2cosx + 8cos2x = 0 + 3
-2cosx + 8cos2x = 0 + 3

Combine like terms: 0 + 3 = 3
-2cosx + 8cos2x = 3

Reorder the terms:
-3 + -2cosx + 8cos2x = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -2cosx + 8cos2x = 0

The solution to this equation could not be determined.

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