And then all of that is divided by h. Now let's see if we can simplify this a little bit. Well, you immediately see you have an x squared and you have a minus x squared. So those cancel out. And then we could divide the numerator and the denominator by h. So this simplifies too. So we get f prime of x is equal to, if we divide the numerator and denominator by h, we get 2x plus h. Oh, sorry. I forgot my limit. It equals the limit.