document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1187064>Question 1187064</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Noelle is 5 years younger than her sister Aya. The difference of the square of Aya’s age and twice the square of Noelle’s age is 1. How old are the two sisters? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #818009 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=818009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you start with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28A=n%2B5%2CA%5E2-2n=1%29 ALIGN=MIDDLE  ALT=\"system%28A=n%2B5%2CA%5E2-2n=1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, substitute for A, then after a few steps you can get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%5E2-10n-24=0 ALIGN=MIDDLE  ALT=\"n%5E2-10n-24=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and discriminant is ,... <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14%5E2 ALIGN=MIDDLE  ALT=\"14%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=%2810%2B-+14%29%2F2 ALIGN=MIDDLE  ALT=\"n=%2810%2B-+14%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and one of this will work but not the other one.<BR>\n" );
document.write( "You can finish.\r<BR>\n" );
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document.write( "Noelle, 12<BR>\n" );
document.write( "Aya, 17 </SPAN>\n" );
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