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. And any time you see a radical plus or minus something else, to get rid of the radical what you can do is multiply by the radical doing the, or if you have a radical minus 3 you multiply by the radical plus 3. So in this situation you just multiply the numerator by square root of x plus 4 plus 3 over the square root of x plus 4 plus 3. We obviously have to multiply the numerator and the denominator by the same thing so that we actually don't change the value of the expression.