document.write( "Question 610242: please simplify the the expression completely (n!n^2-n!)/((n-1)(n+1))\r
\n" ); document.write( "\n" ); document.write( "I tried to simplify it, and all I could get was n(n-2)!n^2-n(n+2)!
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Algebra.Com's Answer #384241 by Alan3354(69443)\"\" \"About 
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simplify the the expression completely (n!n^2-n!)/((n-1)(n+1))
\n" ); document.write( "I tried to simplify it, and all I could get was n(n-2)!n^2-n(n+2)!
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\n" ); document.write( "(n!n^2-n!)/((n-1)(n+1))
\n" ); document.write( "= n!*(n^2-1)/(n^2-1)
\n" ); document.write( "= n!
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