And we can rewrite this if we want as u to the 1 1⁄2 power. It makes it a little bit easier for us to kind of do the reverse power rule here. So we can rewrite this as equal to 1 7th times the integral of u to the 1 1⁄2 power du. And let me just make it clear. This u I could have written in white if I wanted the same color, and this du is the same du right over here. So what is the antiderivative of u to the 1 1⁄2 power? Well, we increment u's power by one.