document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136740>Question 136740</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, <BR>\n" );
document.write( "    Can you help me with this math problem?\r<BR>\n" );
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document.write( "Solve the problem.<BR>\n" );
document.write( "15.) The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number. \r<BR>\n" );
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document.write( "The answer should be 42 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100106 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=100106\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Try this!<BR>\n" );
document.write( "Let T = the ten's digit and U = the unit's digit.<BR>\n" );
document.write( "Then:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%5E2%2BU%5E2+=+20 ALIGN=MIDDLE  ALT=\"T%5E2%2BU%5E2+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > and...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+U%2B2 ALIGN=MIDDLE  ALT=\"T+=+U%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute this into the above equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28U%2B2%29%5E2%2BU%5E2+=+20 ALIGN=MIDDLE  ALT=\"%28U%2B2%29%5E2%2BU%5E2+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U%5E2%2B4U%2B4%2BU%5E2+=+20 ALIGN=MIDDLE  ALT=\"U%5E2%2B4U%2B4%2BU%5E2+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2U%5E2%2B4U%2B4+=+20 ALIGN=MIDDLE  ALT=\"2U%5E2%2B4U%2B4+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 20 from both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2U%5E2%2B4U-16+=+0 ALIGN=MIDDLE  ALT=\"2U%5E2%2B4U-16+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor out a 2.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%28U%5E2%2B2U-8%29+=+0 ALIGN=MIDDLE  ALT=\"2%28U%5E2%2B2U-8%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Apply the zero products rule.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U%5E2%2B2U-8+=+0 ALIGN=MIDDLE  ALT=\"U%5E2%2B2U-8+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Factor.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28U%2B4%29%28U-2%29+=+0 ALIGN=MIDDLE  ALT=\"%28U%2B4%29%28U-2%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U%2B4+=+0 ALIGN=MIDDLE  ALT=\"U%2B4+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U-2+=+0 ALIGN=MIDDLE  ALT=\"U-2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U+=+-4 ALIGN=MIDDLE  ALT=\"U+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U+=+2 ALIGN=MIDDLE  ALT=\"U+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Discard the negative solution.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U+=+2 ALIGN=MIDDLE  ALT=\"U+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" > This is the unit's digit.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+U%2B2 ALIGN=MIDDLE  ALT=\"T+=+U%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+2%2B2 ALIGN=MIDDLE  ALT=\"T+=+2%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+4 ALIGN=MIDDLE  ALT=\"T+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > This is the ten's digit.<BR>\n" );
document.write( "The number (TU) is 42. </SPAN>\n" );
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