Hello,

Hmmm what about this :

as x goes to - infinity, x^2 goes to + infinity and hence ln(x^2) goes to + infinity

as x goes to - infinity, -x goes to + infinity and hence goes to + infinity.

So now you can apply the rule. Just differentiate (by using chain rule) and see if it can help.

I guess it's better you show what you've done =)For two i've put both over a common denominator but still am having trouble getting an answer