document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131994>Question 1131994</A>: <I><SPAN STYLE=\"word-break: break-all;\"> write out the expansion of (r-s)^5. watch out for that minus sign!<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #748790 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13216)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=748790\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Expanding this expression algebraically might be a good exercise; but it is very inefficient for this problem.<br><BR>\n" );
document.write( "Expand using the binomial formula.  (or Pascal's Triangle, which is essentially the binomial formula)<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r-s%29%5E5+=+C%285%2C5%29%28r%29%5E5%28-s%29%5E0+%2B+C%285%2C4%29%28r%29%5E4%28-s%29%5E1+%2B+C%285%2C3%29%28r%29%5E3%28-s%29%5E2+%2B+C%285%2C2%29%28r%29%5E2%28-s%29%5E3+%2B+C%285%2C1%29%28r%29%5E1%28-s%29%5E4+%2B+C%285%2C0%29%28r%29%5E0%28-s%29%5E5 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E5+-+5r%5E4s+%2B+10r%5E3s%5E2+-+10r%5E2s%5E3+%2B+5rs%5E4+-+s%5E5 ALIGN=MIDDLE  ALT=\"r%5E5+-+5r%5E4s+%2B+10r%5E3s%5E2+-+10r%5E2s%5E3+%2B+5rs%5E4+-+s%5E5\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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