document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=79399>Question 79399</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I don't know what to do with this one.  Please help.  Here goes:\r<BR>\n" );
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document.write( "Find two positive numbers that differ by 2 and have a product of 20. Match your result to the correct answer below:<BR>\n" );
document.write( "1-sqrt21, 3-sqrt21<BR>\n" );
document.write( "-1+sqrt21, -1-sqrt21<BR>\n" );
document.write( "-1+sqrt21, 1+sqrt21<BR>\n" );
document.write( "-1+sqrt21, -3+sqrt21\r<BR>\n" );
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document.write( "Please help. Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56985 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=56985\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the two numbers be A and B.  From the problem description you can write:<BR>\n" );
document.write( "1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A-B+=+2 ALIGN=MIDDLE  ALT=\"A-B+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and<BR>\n" );
document.write( "2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AB+=+20 ALIGN=MIDDLE  ALT=\"A%2AB+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Rewrite equation 1) as:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+B%2B2 ALIGN=MIDDLE  ALT=\"A+=+B%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and substitute into equation 2) for A, then solve for B.<BR>\n" );
document.write( "2a) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B%2B2%29B+=+20 ALIGN=MIDDLE  ALT=\"%28B%2B2%29B+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify and subtract 20 from both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%5E2%2B2B-20+=+0 ALIGN=MIDDLE  ALT=\"B%5E2%2B2B-20+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Solve this quadratic equation using the quadratic formula:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+%28-2%2B-sqrt%282%5E2-4%281%29%28-20%29%29%29%2F2%281%29 ALIGN=MIDDLE  ALT=\"B+=+%28-2%2B-sqrt%282%5E2-4%281%29%28-20%29%29%29%2F2%281%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  Simplify.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+%28-2%2B-sqrt%2884%29%29%2F2 ALIGN=MIDDLE  ALT=\"B+=+%28-2%2B-sqrt%2884%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+%28-2%2B-sqrt%284%2A21%29%29%2F2 ALIGN=MIDDLE  ALT=\"B+=+%28-2%2B-sqrt%284%2A21%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+%28-2%2B-sqrt%2821%29%2A2%29%2F2 ALIGN=MIDDLE  ALT=\"B+=+%28-2%2B-sqrt%2821%29%2A2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+-1%2B-sqrt%2821%29 ALIGN=MIDDLE  ALT=\"B+=+-1%2B-sqrt%2821%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The two numbers are:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+-1%2Bsqrt%2821%29 ALIGN=MIDDLE  ALT=\"A+=+-1%2Bsqrt%2821%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+-1-sqrt%2821%29 ALIGN=MIDDLE  ALT=\"B+=+-1-sqrt%2821%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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