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#### Guest

##### Guest

The question:

lim(x->infinity) (x^(1/3) - (x/3))

The answer is supposed to be -infinity, but I've gotten 0, infinity, and at one time an undefined half way through.

I know I should use (a-b)(a^2 +ab+b^2)=a^3 -b^3 however I seem to be messing up somewhere along the way. If someone would direct me to some directions on how to set up the TeX stuff, I'd write it all out, but it would get very messy, very fast if I tried to without it. In fact, it's pretty ugly-looking on this sheet of paper beside me.