Which of the following is a factor of p (x) = x5 - 4x3 - 2x2 - 4x?

To factor our the following expression we proceed as follows;

p (x) = x^5-4x^3-2x^2-4x

factoring out x we get:

p (x) = x (x^4-4x^2-2x-4)

factoring further we get:

x^4-4x^2-2x-4

= (x+2) (x^3-2x^2-2)

Therefore our expression becomes:

p (x) = x (x+2) (x^3-2x^2-2)

Therefore the factors are x and (x+2) and (x^3-2x^2-2)