So if we evaluate it at four, it's going to be negative three over four squared. Four to the negative two is one over four squared. And then plus the natural log of the, we could say the absolute value of four, but the absolute value of four is just four. So the natural log of four. And from that, we're going to subtract everything evaluated at two. So let's do that. So if we evaluated at two, it's going to be negative three over two squared.