document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=423846>Question 423846</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me with this?\r<BR>\n" );
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document.write( "Write two binomials of the form (a&#8730;b + c&#8730;f)  and (a&#8730;b - c&#8730;f).  Then find their product.\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #295534 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=295534\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In general, the solution (using FOIL) would be: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%2Asqrt%28b%29+%2B+c%2Asqrt%28f%29%29%28a%2Asqrt%28b%29+-+c%2Asqrt%28f%29%29+=+a%5E2b+-+c%5E2f ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >, since the middle two terms cancel out.<BR>\n" );
document.write( "Using an example, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%2Asqrt%284%29+%2B+2%2Asqrt%289%29%29%285%2Asqrt%284%29+-+2%2Asqrt%289%29%29 ALIGN=MIDDLE  ALT=\"%285%2Asqrt%284%29+%2B+2%2Asqrt%289%29%29%285%2Asqrt%284%29+-+2%2Asqrt%289%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solving gives 25*4 - 4*9 = 100 - 36 = 64 </SPAN>\n" );
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