Factorise :
x cube + 13xsquare + 32x+20

Here is the link for the answer to your query:

https://www.meritnation.com/ask-answer/question/find-the-dimension-of-a-cuboid-whose-volume-x3-13x2-32x-20/math/2873061

In the link it mentions for dimensions of cuboid, the solution itself is for factorization and the factors we get are dimensions for the cuboid.
If you have any doubt, then do get back to us.