document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=246255>Question 246255</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Compute each of the following.  Look for simplifications first.\r<BR>\n" );
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document.write( "a. 20P15 (the 20 and the 15 are small)It's looking for the permutation??\r<BR>\n" );
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document.write( "b. (n+1)! <BR>\n" );
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document.write( "   (n-1)!\r<BR>\n" );
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document.write( "Thank you so much in advance.<BR>\n" );
document.write( "This is so difficult.  <BR>\n" );
document.write( "~Marney\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #179882 by </B><A HREF=/tutors/aboutme.mpl?userid=TheProdicalSon><B>TheProdicalSon(34)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TheProdicalSon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=179882\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The first one is pretty simple.\r<BR>\n" );
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document.write( "20P15 = 20(amount to choose from)permutation 15(amount needed)\r<BR>\n" );
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document.write( "this is written as  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%21%2F5%21 ALIGN=MIDDLE  ALT=\"20%21%2F5%21\"   DISABLED_style= \"max-width:90%; height:auto;\" > which translates into (after simplification)<BR>\n" );
document.write( "20 * 19 * 18 * 17 * 16 * 15 * 14 * 13 * 12 * 11 * 10 * 9 * 8 * 7 * 6\r<BR>\n" );
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document.write( "= 20,274,183,401,472,000\r<BR>\n" );
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document.write( "The second one.<BR>\n" );
document.write( "I have no idea, I believe the answer is already as simplified as it can get<BR>\n" );
document.write( "but I really don't know, sorry.\r<BR>\n" );
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document.write( "Comment on my page if this was helpful.<BR>\n" );
document.write( "Sincerely,<BR>\n" );
document.write( "TheProdicalSon\r<BR>\n" );
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