So let's write this in terms of u and du. This simplifies to one over the natural log of eight times the antiderivative of e, e to the u, e to the u, that's the u, du. This times this times that is du, du. And this is straightforward. We know what this is going to be. This is going to be equal to, so let me just write the one over natural log of eight out here. One over natural log of eight times e to the u.