Can someone please explain it to me ASAP?!!!! This is Volume by Slicing. What is the volume of the solid is ????

HOMEWORK. Mill. . . Part 2 of 2 O Points: 0 of 1 Let R be the region bounded by the following curves. Find the volume of the solid generated when R is revolved about the x-axis. y = 2 x , y= 8-x2 .. ... Set up the integral that gives the volume of the solid. - N (T (x 4 - 20x2 + 64) ) dx - 2 ary (Type exact answers.) The volume of the solid is cubic units. ns (Type an exact answer.) urc