document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1023990>Question 1023990</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the maximum product of two numbers whose sum is -10? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #639488 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=639488\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  what is the maximum product of two numbers whose sum is -10? <BR>\n" );
document.write( "x + y = -10<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Product = x*y = x(-10-x) = -10x - x^2<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "Max occurs when x = -b/(2a) = 10/(2*-1) = -5<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Then y = -10-(-5) = -5<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Ans: x = y = -5<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "--------------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );