Question 988705
If you multiply the two factors, you get 5x^3-22x^2-3x-60.  The polynomial needs a -53 so that when synthetic division is done using 5, the last term is  -53+(12*5)=7
The polynomial is 5x^3-22x^2-3x-53
5/5 ;;-22;;-3;;-53
;;;5;; 3;;12; 7