So negative nine x. And let's see, we can simplify that a little bit. 10 x minus nine x, well that's just going to leave us with x. So if we, 10 x minus nine x is just going to be x. And then in our denominator, we're almost there. In our denominator, we could just write that as x plus three x, x squared plus three x squared. Or if we want, we could expand it out.