document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=828420>Question 828420</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what two numbers multiply to equal -3136 and add up to equal 15? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499308 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=499308\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what two numbers multiply to equal -3136 and add up to equal 15?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "xy = -3136<BR>\n" );
document.write( "x + y = 15<BR>\n" );
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document.write( "Substitute for \"x\" and solve for \"y\":<BR>\n" );
document.write( "(15-y)y = -3136<BR>\n" );
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document.write( "y^2 - 15y - 3136 = 0<BR>\n" );
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document.write( "(y-64)(y+79) = 0<BR>\n" );
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document.write( "If y = 64, x = -79<BR>\n" );
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document.write( "Ans: y = 79, x = -64\r<BR>\n" );
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