document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=302079>Question 302079</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find two possitive numbers that differ by 2 and have a product of 20. I am looking for an answer involving \"+/- the square root of 21\". </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #216601 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=216601\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a-b=2<BR>\n" );
document.write( "a*b=20<BR>\n" );
document.write( "a=b+2<BR>\n" );
document.write( "(b+2)*b=20<BR>\n" );
document.write( "b^2+2b-20=0<BR>\n" );
document.write( "complete the square<BR>\n" );
document.write( "(b+1)^2=21<BR>\n" );
document.write( "your +- sqrt(21) is close.<BR>\n" );
document.write( "b+1=+-sqrt(21)<BR>\n" );
document.write( "b=-1+-sqrt(21)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );