You don't need to go through all this. When working with rational expressions like this, just use the highest powers.
Problem: lim x--> infinity, w all divided by .(sry couldn't figure out how to make it into a fraction).
From there I divided the numerator and the denominator by x^(5/4), and I ended up with divided by .
I kind of confused on what I do from here to find the limit...Any help please?