Factorise x^3 - 3x^2 - 9x - 5

(x +1), (x -5) and (x +1)

Explanation:

The computation of the factorization is shown below

Data provided in the question

Based on the above information, the factors are

Now we have to open these equations in order to get the factors which are as follows

So,

= (x + 1) (x - 5) (x + 1)

Therefore the (x +1), (x -5) and (x +1) are the factors of the mention polynomial give in the question