document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1189240>Question 1189240</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28a-b%29%5E2+%2B+a%5E2+=+169+ ALIGN=MIDDLE  ALT=\"+%28a-b%29%5E2+%2B+a%5E2+=+169+\"   DISABLED_style= \"max-width:90%; height:auto;\" > a and b are integers, and a≥0. Find the number of different ordered pairs (a,b) that occur. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #820546 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=820546\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28a-b%29%5E2+%2B+a%5E2+=+169+ ALIGN=MIDDLE  ALT=\"+%28a-b%29%5E2+%2B+a%5E2+=+169+\"   DISABLED_style= \"max-width:90%; height:auto;\" > a and b are integers, and a≥0. Find the number of different ordered pairs (a,b) that occur.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28a-b%29%5E2+%2B+a%5E2+=+169+ ALIGN=MIDDLE  ALT=\"+%28a-b%29%5E2+%2B+a%5E2+=+169+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "5^2 + 12^2 = 169<BR>\n" );
document.write( "---<BR>\n" );
document.write( "a = 12, b = 7<BR>\n" );
document.write( "a = 5, b = -7<BR>\n" );
document.write( "a = 0, b = 13<BR>\n" );
document.write( "a = 0, b = -13<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Might be others, but I doubt it.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );