find the volume of the solid generated by revolving each region about the y-axis

the region in the first quadrant bounded above by the parabola y=x^2, below by the x, axis, and on the right by the line x=2.

Worked this problem out like 5 times idk why i cant get the right answer. cannot find what im doing wrong. It seems pretty simple. Answers 8Pi. HELP PLZ