Answer:
[tex]-k(k+1)(k+2)[/tex]
Step-by-step explanation:
Begin to factor by using GCF by finding the greatest common factor. Here it is k.
[tex]-2k-k^3-3k^2 = -k(2+k^2+3k)[/tex]
We will rearrange and factor the trinomial.
[tex]-k(2+k^2+3k)\\-k(k^2+3k+2)\\-k(k+1)(k+2)[/tex]