Online classes are a lot easier since they are open book, but it will still take a lot of work. Exams are a little easier but you need to have studied and have very organized notes and be able to quickly look for stuff in the textbook/powerpoint. If your transcript doesn't distinguish between taking it online vs in-class (if they can't tell if you took it online or not) then I say go for it. You'd better get an A in the class though if you are retaking it, otherwise it looks pretty bad.