document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957389>Question 957389</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangle is 4cm longer than it is wide. If it is x cm wide and has an area of 77cm squared. Form an equation in x and solve it to find the dimensions of the rectangle<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585148 by </B><A HREF=/tutors/aboutme.mpl?userid=satyareddy><B>satyareddy(3)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=satyareddy><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=585148\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> width=x cm,<BR>\n" );
document.write( "Let length be l cm<BR>\n" );
document.write( "l-x=4 cm =>l = 4+x---------(1)<BR>\n" );
document.write( "lx=77<BR>\n" );
document.write( "substituting (1) in lx=77<BR>\n" );
document.write( "(4+x)x=77<BR>\n" );
document.write( "4x+x^2=77<BR>\n" );
document.write( "x^2+4x-77=0<BR>\n" );
document.write( "x^2+11x-7x-77=0<BR>\n" );
document.write( "x(x+11)-7(x+11)=0<BR>\n" );
document.write( "(x+11)(x-7)=0<BR>\n" );
document.write( "x=-11,7<BR>\n" );
document.write( "since width cannot take negative value x=7<BR>\n" );
document.write( "substituting x=7 in (1)<BR>\n" );
document.write( "l=4+7=11 </SPAN>\n" );
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