document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=693953>Question 693953</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many ways are there to arrange the letters F, R, E, E, if the E's must be side by side? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #427659 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=427659\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The E's must be side by side. So you can think of EE as one letter (call it Z)\r<BR>\n" );
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document.write( "So \r<BR>\n" );
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document.write( "F, R, E, E\r<BR>\n" );
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document.write( "turns into\r<BR>\n" );
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document.write( "F, R, Z\r<BR>\n" );
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document.write( "There are 3 unique letters, so there are 3! = 3*2*1 = 6 permutations and they are\r<BR>\n" );
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document.write( "FRZ<BR>\n" );
document.write( "FZR<BR>\n" );
document.write( "RFZ<BR>\n" );
document.write( "RZF<BR>\n" );
document.write( "ZFR<BR>\n" );
document.write( "ZRF\r<BR>\n" );
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document.write( "Wherever you see a \"Z\" in the list above, just replace it with EE, so you'd get this new list if you do that\r<BR>\n" );
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document.write( "FREE<BR>\n" );
document.write( "FEER<BR>\n" );
document.write( "RFEE<BR>\n" );
document.write( "REEF<BR>\n" );
document.write( "EEFR<BR>\n" );
document.write( "EERF </SPAN>\n" );
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