document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=759002>Question 759002</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The area of a rectangle is 96ft square. <BR>\n" );
document.write( "The width is 4 less than the length. <BR>\n" );
document.write( "What is the perimeter? \r<BR>\n" );
document.write( "\n" );
document.write( "I am having trouble coming up with a formula for questions similar to this.  <BR>\n" );
document.write( "L*W = 96,   and L-4=W  is all I got.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #461761 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=461761\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The area of a rectangle is 96ft square. <BR>\n" );
document.write( "The width is 4 less than the length. <BR>\n" );
document.write( "What is the perimeter? \r<BR>\n" );
document.write( "\n" );
document.write( "I am having trouble coming up with a formula for questions similar to this.  <BR>\n" );
document.write( "L*W = 96,   and L-4=W  is all I got.<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "That's all you need.<BR>\n" );
document.write( "Sub for W in the 1st eqn<BR>\n" );
document.write( "L*W = 96<BR>\n" );
document.write( "L*(L-4) = 96<BR>\n" );
document.write( "L^2 - 4L - 96 = 0<BR>\n" );
document.write( "(L - 12)*(L + 8) = 0<BR>\n" );
document.write( "L = 12<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "W = 8<BR>\n" );
document.write( "----<BR>\n" );
document.write( "You could have tried factors of 96 and gotten 8 by 12, too.<BR>\n" );
document.write( "Perimeter = 40 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );