5cos^2(x)+14cosx+9=0

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Solution for 5cos^2(x)+14cosx+9=0 equation:


Simplifying
5cos2(x) + 14cosx + 9 = 0

Multiply cos2 * x
5cos2x + 14cosx + 9 = 0

Reorder the terms:
9 + 14cosx + 5cos2x = 0

Solving
9 + 14cosx + 5cos2x = 0

Solving for variable 'c'.

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

Add '-9' to each side of the equation.
9 + 14cosx + -9 + 5cos2x = 0 + -9

Reorder the terms:
9 + -9 + 14cosx + 5cos2x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 14cosx + 5cos2x = 0 + -9
14cosx + 5cos2x = 0 + -9

Combine like terms: 0 + -9 = -9
14cosx + 5cos2x = -9

Reorder the terms:
9 + 14cosx + 5cos2x = -9 + 9

Combine like terms: -9 + 9 = 0
9 + 14cosx + 5cos2x = 0

The solution to this equation could not be determined.

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