-2cos^2x=3cosx+1

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Solution for -2cos^2x=3cosx+1 equation:


Simplifying
-2cos2x = 3cosx + 1

Reorder the terms:
-2cos2x = 1 + 3cosx

Solving
-2cos2x = 1 + 3cosx

Solving for variable 'c'.

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

Add '-3cosx' to each side of the equation.
-3cosx + -2cos2x = 1 + 3cosx + -3cosx

Combine like terms: 3cosx + -3cosx = 0
-3cosx + -2cos2x = 1 + 0
-3cosx + -2cos2x = 1

Reorder the terms:
-1 + -3cosx + -2cos2x = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -3cosx + -2cos2x = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + 3cosx + 2cos2x) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(1 + 3cosx + 2cos2x)' equal to zero and attempt to solve: Simplifying 1 + 3cosx + 2cos2x = 0 Solving 1 + 3cosx + 2cos2x = 0 Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + 3cosx + -1 + 2cos2x = 0 + -1 Reorder the terms: 1 + -1 + 3cosx + 2cos2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3cosx + 2cos2x = 0 + -1 3cosx + 2cos2x = 0 + -1 Combine like terms: 0 + -1 = -1 3cosx + 2cos2x = -1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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