To evaluate a limit as it approaches negative infinity, one should reverse the signs of terms with odd powers of x, divide everything by the highest power of x in the denominator, then evaluate the limit of each term and sum the results. This process is demonstrated to work for the example limit of (x^3 + x^2 + x)/(x^4) as x approaches negative infinity.

1. When evaluating a limit as it approaches negative infinity, should you reverse the signs of the
terms that have odd powers of x, then divide everything by the highest power of the variable in
the denominator (i.e. x2) and then evaluate the limit for each term, and then sum it all up?
Solution
Sounds like it will work in all cases. It *does* work for lim x-> -inf of ((x^3 + x^2
+ x)/(x^4))