Hi, can someone help please. I would like to know (in detail plz) how to approach the typical problems that follows, as I am not quite sure how to go about starting to solve this. I really need to know an established method about solving things like this.

question :-Find the HCF of
24x^4-2x^3-60x^2-32x and 18x^4-6x^3-39x^2-18x


(note ^ = to the power of)


thanks for any help
Gaz