cos^2x-cosx-30=0

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Solution for cos^2x-cosx-30=0 equation:


Simplifying
cos2x + -1cosx + -30 = 0

Reorder the terms:
-30 + -1cosx + cos2x = 0

Solving
-30 + -1cosx + cos2x = 0

Solving for variable 'c'.

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

Add '30' to each side of the equation.
-30 + -1cosx + 30 + cos2x = 0 + 30

Reorder the terms:
-30 + 30 + -1cosx + cos2x = 0 + 30

Combine like terms: -30 + 30 = 0
0 + -1cosx + cos2x = 0 + 30
-1cosx + cos2x = 0 + 30

Combine like terms: 0 + 30 = 30
-1cosx + cos2x = 30

Reorder the terms:
-30 + -1cosx + cos2x = 30 + -30

Combine like terms: 30 + -30 = 0
-30 + -1cosx + cos2x = 0

The solution to this equation could not be determined.

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