Ok, I'm given this polynomial and I'm asked to find the roots of it in the ring mod p. And then it asks to do it in, mod p^2, mod p^3 and mod p^4. I don't remember ever learning how to do it in those powers. Any tips on how to solve such things? Note: Without having to sub in all the values. If it was 7^4, that would suck. Note: Not homework. It's just a problem set to a pdf file I'm going through. It's review for the material, so I want to get a handful of problems down before moving forward.