Given that the curves y=x and x=y^2+2y+1 from y=2 revolve about the x-axis.
If you have a round shape with a hole in the center, you can use the washer method to find the volume by cutting that shape into thin pieces. Each slice has a hole in its middle that you have to subtract
we cannot be revolved around the x-axis, because both are not intersected with each other.
The answer is cannot revolve around the x-axis.