You could factor out an x. You get x times x minus 1 is equal to 0. And so either one of these could be equal to 0. So x is equal to 0, or x minus 1 is equal to 0. And then you get x equals 0, or x is equal to 1. x is equal to 0, or x equals 1, which gives us our boundaries of integration. So this goes from x equals 0 to x equals 1. And so for the outside of our shape, we can now figure out the volume.