document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=830490>Question 830490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The product of two numbers is 2400. one  number is 20 more than the other. What are the two numbers? i found the answer but not using algebra expressions, so can you explain how to use with this question.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500653 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=500653\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is probably EASIER with algebra than without it.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Two numbers, m and n.<BR>\n" );
document.write( "mn=2400;<BR>\n" );
document.write( "and <BR>\n" );
document.write( "n=20+m.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "What could be easier or simpler than those two small equations?<BR>\n" );
document.write( "You simply have this system of simultaneous equations:<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mn=2400 ALIGN=MIDDLE  ALT=\"mn=2400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=m%2B20 ALIGN=MIDDLE  ALT=\"n=m%2B20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Solve for m and n. The simplest thing to do is use the formula for n and substitute into the product equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mn=2400 ALIGN=MIDDLE  ALT=\"mn=2400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%28m%2B20%29=2400 ALIGN=MIDDLE  ALT=\"m%28m%2B20%29=2400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2%2B20m=2400 ALIGN=MIDDLE  ALT=\"m%5E2%2B20m=2400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%5E2%2B20m-2400=0 ALIGN=MIDDLE  ALT=\"m%5E2%2B20m-2400=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > -------which is either factorable OR can be solved (for m) using the general solution to the quadratic formula.  Once found, use the known m to compute n. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );