document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919987>Question 919987</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangle whose area is 180 sq.ft. has its sides, respectively, diminished by 7 ft. and 4 ft. so as to become a square. The length of the side of the square is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558090 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=558090\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Lw = 180, L = 180/w<BR>\n" );
document.write( "..........<BR>\n" );
document.write( "(L-7)(w-4) = Area of Square<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28180%2Fw+-7%29%28w-4%29+=+s%5E2 ALIGN=MIDDLE  ALT=\"%28180%2Fw+-7%29%28w-4%29+=+s%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28180+-7w%29%2Fw%29%28w-4%29+=+s%2As ALIGN=MIDDLE  ALT=\"%28%28180+-7w%29%2Fw%29%28w-4%29+=+s%2As\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(180 - 7w)/w = w-4<BR>\n" );
document.write( "180-7w = w^2 - 4w<BR>\n" );
document.write( "w^2 +3w - 180 = 0  Tossing out the negative solution for unit measure)<BR>\n" );
document.write( "(w+15)(w-12) = 0<BR>\n" );
document.write( "w = 12<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+highlight_green%288%29 ALIGN=MIDDLE  ALT=\"+highlight_green%288%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12-4 ALIGN=MIDDLE  ALT=\"12-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".........<BR>\n" );
document.write( "And Checking... L = 15 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180%2F12 ALIGN=MIDDLE  ALT=\"180%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(15-7)(12-4) = 8•8 = s^2<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );