Integration: upper bound appears within integrand

Hi All,

Thanks for checking out this question. I am working a semi-strange integral and am having trouble getting Maple to evaluate it:

I am getting the response:

"Warning, unable to determine if 464/19 is between 6 and x; try to use assumptions or use the AllSolutions option"

I'm using Maple 15 and don't quite understand this assumptions option (AllSolutions isn't giving me what I need).

Thanks for your help!

-Andrew