So you get this indeterminate form of 0 over 0. And in the future we will see that we do have a tool that allows us, or gives us an option to attempt to find limits when we get this indeterminate form. It's called L'Hopital's Rule. But we can actually tackle this with a little bit of fancy algebra. And to do that I'm going to try to get this radical out of the numerator. So let's rewrite it. So we have the square root of x plus 4 minus 3 over x minus 5.