When doing this problem, we're going to divide through by the highest exponent term of the denominator. So if I divided everything through by X ^2, I'd get 1 / X ^2 -, X / 1 + 5 / X. That's all to the 7th power. So when I put in negative Infinity, I would get one over negative Infinity squared, or 0 minus negative Infinity, which would be positive Infinity or something big over 1 + 5 over negative Infinity. Something really small to the 7th power. So that's just going to go out to Infinity.