cos^2x-5cosx-6=0

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Solution for cos^2x-5cosx-6=0 equation:


Simplifying
cos2x + -5cosx + -6 = 0

Reorder the terms:
-6 + -5cosx + cos2x = 0

Solving
-6 + -5cosx + cos2x = 0

Solving for variable 'c'.

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

Add '6' to each side of the equation.
-6 + -5cosx + 6 + cos2x = 0 + 6

Reorder the terms:
-6 + 6 + -5cosx + cos2x = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -5cosx + cos2x = 0 + 6
-5cosx + cos2x = 0 + 6

Combine like terms: 0 + 6 = 6
-5cosx + cos2x = 6

Reorder the terms:
-6 + -5cosx + cos2x = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + -5cosx + cos2x = 0

The solution to this equation could not be determined.

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