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#1 Re: Help Me ! » Expansion » 2013-06-02 09:27:50

smasher99

The answer is x^2-2+1/x^2 but I don't know how it was arrived at ...

#2 Help Me ! » Expansion » 2013-06-02 08:54:49

smasher99
Replies: 3

How do I expand x-(1/x)^2?

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