0=2cos^2x+3cosx-2

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Solution for 0=2cos^2x+3cosx-2 equation:


Simplifying
0 = 2cos2x + 3cosx + -2

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

Solving
0 = -2 + 3cosx + 2cos2x

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.
0 + -3cosx = -2 + 3cosx + -3cosx + 2cos2x
Remove the zero:
-3cosx = -2 + 3cosx + -3cosx + 2cos2x

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

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

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

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

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

The solution to this equation could not be determined.

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