Well, we can just cancel out the x to the 7th, so it's going to be 9 thirds or just 3, which is just going to be 3. So that is our limit as x approaches infinity of all of this craziness. Now let's do the same with this function over here. Once again, crazy function. We're going to negative infinity, but the same principles apply. Which terms dominate as the absolute value of x get larger and larger and larger, as x gets larger in magnitude? Well, in the numerator, it's the 3x to the 3rd term.