The volume of the solid obtained by rotating the region enclosed by about the line http://math.webwork.rochester.edu:80...13319ac2f1.png can be computed using the method of disks or washers via an integral

http://math.webwork.rochester.edu:80...cb8f222c01.png =

I got 86http://math.webwork.rochester.edu:80...1af403ed41.png but that's wrong... Also I cant find the boundaries. I know a=0 and when I graphed the functions, they cross at x=2 but that's not right....