These aren't homework questions. They were on a test I had today. The first was how do I factor 2x^3-3x^2-16x-5. I'm fairly certain that's right. It was actually part of a larger problem, involving finding a slant asymptote. I just used my graphing utility to find the answer, but I'd like to know how to actually factor that. I'm pretty sure you get (x+1) and a quadratic equation, just not sure what that equation is. Second question is about exponents. I think I got this one wrong. It was 1.7^(-3/5). Now, I got .787 I think. But what I was wondering, shouldn't the answer be equal to 1.7^-3 - 1.7^5? When I tested it, it wasn't. Isn't that one of the properties of exponents? x^(a/b) = x^a-x^b?