document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=49985>Question 49985</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having problems with this, can someone please help me with this question?\r<BR>\n" );
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document.write( "The length of a rectangular sign is 3feet longer than the width. If the sign has a area of 40 square feet for advertising, find its length and its width.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #33221 by </B><A HREF=/tutors/aboutme.mpl?userid=alka><B>alka(15)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=alka><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=33221\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let width = x<BR>\n" );
document.write( "length = x+3<BR>\n" );
document.write( "area = length * width<BR>\n" );
document.write( "  40 = X(X+3)<BR>\n" );
document.write( "  40 = x^2+3x<BR>\n" );
document.write( "  x^2+3x-40=0<BR>\n" );
document.write( "x^2+8x-5x-40=0<BR>\n" );
document.write( "x(x+8)-5(x+8)=0<BR>\n" );
document.write( "(x+8)(x-5)=0<BR>\n" );
document.write( "x=-8 OR x=5<BR>\n" );
document.write( "width cannot be negative<BR>\n" );
document.write( "width=5feet<BR>\n" );
document.write( "length=8feet<BR>\n" );
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