document.write( "Question 1043206: Simplify the expression: (n!)²-(n-1)!n!/(n-1)!n! \n" ); document.write( "

Algebra.Com's Answer #658318 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Simplify the expression: (n!)²-(n-1)!n!/(n-1)!n!
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document.write( "Let us start with the numerator.\r\n" );
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document.write( " =  = n!*(n-1)!.\r\n" );
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document.write( "Did you noticed that it is exactly the denominator?\r\n" );
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document.write( "The answer is: 1.\r\n" );
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