What is factor cos^2(x)-cos(x)-2 ?

The solution to factor cos^2(x)-cos(x)-2 is (cos(x)+1)(cos(x)-2)

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factor cos^2(x)-cos(x)-2

factor

cos^{2} (x) - cos (x) - 2

(cos (x) + 1) (cos (x) - 2)

Solution steps

cos^{2} (x) - cos (x) - 2

Break the expression into groups

= (cos^{2} (x) + cos (x)) + (- 2 cos (x) - 2)

Factor out

cos (x)

from

cos^{2} (x) + cos (x) : cos (x) (cos (x) + 1)

Factor out

- 2

from

- 2 cos (x) - 2 : - 2 (cos (x) + 1)

= cos (x) (cos (x) + 1) - 2 (cos (x) + 1)

Factor out common term

cos (x) + 1

= (cos (x) + 1) (cos (x) - 2)

\frac{d ^{2}}{d x ^{2}} ((y) (3^{x}))

5 x y + yz - 15 x - 3 z

- 2 k t + s^{{3}}

x^{2} - \frac{7}{3} x - 2

(\frac{3}{2})!

What is factor cos^2(x)-cos(x)-2 ?
The solution to factor cos^2(x)-cos(x)-2 is (cos(x)+1)(cos(x)-2)