10cos*2x-8cos+1=0

Solution for 10cos*2x-8cos+1=0 equation:

Simplifying
10cos * 2x + -8cos + 1 = 0

Reorder the terms for easier multiplication:
10 * 2cos * x + -8cos + 1 = 0

Multiply 10 * 2
20cos * x + -8cos + 1 = 0

Multiply cos * x
20cosx + -8cos + 1 = 0

Reorder the terms:
1 + -8cos + 20cosx = 0

Solving
1 + -8cos + 20cosx = 0

Solving for variable 'c'.

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

Add '-1' to each side of the equation.
1 + -8cos + -1 + 20cosx = 0 + -1

Reorder the terms:
1 + -1 + -8cos + 20cosx = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -8cos + 20cosx = 0 + -1
-8cos + 20cosx = 0 + -1

Combine like terms: 0 + -1 = -1
-8cos + 20cosx = -1

Reorder the terms:
1 + -8cos + 20cosx = -1 + 1

Combine like terms: -1 + 1 = 0
1 + -8cos + 20cosx = 0

The solution to this equation could not be determined.