So i'm wondering if anyone knows a way i can find answers to my homework before i hand it in. sometimes i'm not sure if i'm doing it right, and i want to check my final result. obviously i still have to show my work, so just having an answer doesn't get my homework done for me. there's selected answers in the back, but basically only one per problem 'type' so if i get stuck on that one, even if i eventually get the right answer, i'm still not confident i can do the rest very well. sometimes i'll google problems with a little luck, but usually that doesn't work super well. Specifically, right now i'm doing some differential equations work, and each problem is a lot of math and i'm not sure if my answers look right. I keep getting very wrong answers on a few, (doesn't fit the 'protoype' diff eq that i'm working on) and so i'm afraid i've done most of them wrong. any ideas?