And that's one of the indeterminate forms that L'Hopital's Rule can be applied to. And you're probably saying, hey, Sal, why are we even using L'Hopital's Rule? I know how to do this without L'Hopital's Rule, and you probably do, or you should, and we'll do that in a second. But I just want to show you that L'Hopital's Rule also works for this type of problems, and I really just want to show you an example that had an infinity over a negative or positive infinity indeterminate form. But let's apply L'Hopital's Rule here. So if this limit exists, or if the limit of their derivatives exists, then this limit's going to be equal to the limit as x approaches infinity of the derivative of the numerator. So the derivative of the numerator is the derivative of 4x squared is 8x minus 5 over, the derivative of the denominator is, well, the derivative of 1 is 0, the derivative of negative 3x squared is negative 6x.