Ok, I've been doing work for about 4 hours straight and I think my brain is fried. I know this is easy, it is just not working in my head. Anyway, the problem is this: Integrate the sqrt(4x) + sqrt(4x) on the interval 0 to 1 I get, (8^3/2)/3 + (8^3/2)/3 but apparently this is not right. I'm probably forgetting something I'll hit myself in the head for . Any help though? Thx, MathGnome PS: This is not homework.