document.write( "Question 30647: xy-1= (factoring)
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Algebra.Com's Answer #17515 by troyapplehelen(46)\"\" \"About 
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1 is always x(1/x) or y(1/y)
\n" ); document.write( "so, xy=x(1/x). then, xy=x(1/x)
\n" ); document.write( "in factoring, xy-x(1/x)=0 x(y-1/x)=0 answers x=1/y or y=1/x
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