I've just started trying to learn calculus via self-study; I bought a text book and am using some stuff online for further explanation/practice questions, and if no one minds, I though I might try to use this thread to look for help/advice when I come to a problem I don't understand.(adsbygoogle = window.adsbygoogle || []).push({});

Right now I'm having some trouble understanding this solution:

http://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/limconsoldirectory/LimConSol.html#SOLUTION 7

First off I don't understand how they went from the second centered-line part of the solution to the third - how did (x - 1) come from (x^1/3 - 1)([x^1/3]^2 ... etc)

Also, in the fourth centered line of the solution (i hope my wording isnt confusing anyone -- dont know how else to refer to it), I don't understand how that conjugate was derived.

Thanks for any help that can be given.

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# Homework Help: My simple questions - bear with me while I try to learn calculus

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