Or you could reason through this. And when I talk about reasoning through this, it's to think about the behavior of this numerator and denominator as x gets very, very, very large. And when I'm talking about that, what I'm saying is as x gets very, very large, let's just focus on the numerator, as x gets very, very large, this term right over here in the numerator, 4x to the 5th, is going to become much, much more significant than any of these other things. Something squaring gets large, but something being raised to the 5th power gets raised that much, much faster. Similarly, in the denominator, this term right over here, the highest degree term, 6x to the 5th, is going to grow much, much, much faster than any of these other terms. Even though this has 100 as a coefficient or a negative 100 as a coefficient, when you take something to the 5th power, it's going to grow so much faster than x squared. So as x gets very, very, very large, this thing is going to approximate 4x to the 5th over 6x to the 5th for very large x.