- #1

JR Sauerland

Gold Member

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## Main Question or Discussion Point

http://imgur.com/BNQPAQa

I'm missing something. Why does x+1/x suddenly become x-1/x2? I get that they moved the x to the top, subtracted the -1-1, but does that exclusively set the fraction negative all on its own ? I've computed it by hand. 1

I'm missing something. Why does x+1/x suddenly become x-1/x2? I get that they moved the x to the top, subtracted the -1-1, but does that exclusively set the fraction negative all on its own ? I've computed it by hand. 1

^{-2}comes out to be 1... So why is it negative... ?