So for example, in the numerator, out of these three terms, the 9x to the 7th is going to grow much faster than any of these other terms. So this is the dominating term in the numerator. And the denominator, 3x to the 7th, is going to grow much faster than an x to the 5th term, definitely much faster than a log base 2 term. So at infinity, as we get closer and closer to infinity, this function is going to be roughly equal to 9x to the 7th over 3x to the 7th. And so we can say, especially as we get larger and larger, as we get closer and closer to infinity, these two things are going to get closer and closer to each other. We can say this limit is going to be the same thing as this limit, which is going to be equal to the limit as x approaches infinity. 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.