Hello, I am just starting to learn limit evaluation techniques. I am unsure of the method used in this case. (x^3 + x + 2) / (x^4 -x +1) limit tending towards infinity. I know the first step is 'x^3 / x^4', then '1/x = 0' But I dont understand how this came about. Can someone please clarify these steps. Thanks kindly if possible.