document.write( "Question 610242: please simplify the the expression completely (n!n^2-n!)/((n-1)(n+1))\r
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document.write( "I tried to simplify it, and all I could get was n(n-2)!n^2-n(n+2)! \n" );
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Algebra.Com's Answer #384241 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 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)! \n" ); document.write( "------------ \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! \n" ); document.write( " \n" ); document.write( " |