document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288739>Question 288739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, Any help you can give will be appreciated!<BR>\n" );
document.write( "x-y=2<BR>\n" );
document.write( "x2-y2=40<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209264 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=209264\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-y=2 or x=y+2<BR>\n" );
document.write( "x2-y2=40<BR>\n" );
document.write( "(y+2)^2-y^2=40<BR>\n" );
document.write( "y^2+4y+4-y^2=40<BR>\n" );
document.write( "4y=40-4<BR>\n" );
document.write( "4y=36<BR>\n" );
document.write( "y=36/4<BR>\n" );
document.write( "y=9 ans.<BR>\n" );
document.write( "x=9+2<BR>\n" );
document.write( "x=11 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "11^1-9^2=40<BR>\n" );
document.write( "121-81=40<BR>\n" );
document.write( "40=40 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );