document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747168>Question 747168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Show that (n + 1)^2 is a divisor of (n + 1)! + n! + (n - 1)!. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454753 by </B><A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><B>tommyt3rd(5050)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tommyt3rd><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=tommyt3rd><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=454753\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the key is to rewrite the factorials so that they are in terms of (n-1)!\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n+%2B+1%29%21+%2B+n%21+%2B+%28n+-+1%29%21=%28n+%2B+1%29%2An%2A%28n+-+1%29%21%2B+n%2A%28n+-+1%29%21+%2B+%28n-1%29%21%0D%0A%0D%0A ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%0D%0A%28%28n+%2B+1%29%2An%2B+n+%2B+1%29%28n-1%29%21%0D%0A%0D%0A ALIGN=MIDDLE  ALT=\"%0D%0A%28%28n+%2B+1%29%2An%2B+n+%2B+1%29%28n-1%29%21%0D%0A%0D%0A\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and then...\r<BR>\n" );
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