document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1061051>Question 1061051</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The width of a rectangle is 6cm less than twice the length.  If the area is to be 20cm^2, then what is its length?  Show all work. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #676033 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=676033\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "Make the length = x<BR>\n" );
document.write( "Width = 2x - 6<BR>\n" );
document.write( "Area = Length x Width<BR>\n" );
document.write( "20 = x(2x - 6)<BR>\n" );
document.write( "20 = 2x^2 - 6x<BR>\n" );
document.write( "Rearrange:<BR>\n" );
document.write( "2x^2 - 6x - 20 = 0<BR>\n" );
document.write( "Divide by 2 for ease.<BR>\n" );
document.write( "2(x^2 - 3x - 10)<BR>\n" );
document.write( "Factorize<BR>\n" );
document.write( "2(x + 2)(x - 5) = 0<BR>\n" );
document.write( "x + 2 = 0<BR>\n" );
document.write( "x = -2 (Disregard as -ve)<BR>\n" );
document.write( "x - 5 = 0<BR>\n" );
document.write( "x = 5<BR>\n" );
document.write( "Length = 5 cm<BR>\n" );
document.write( "Width = 4 cm<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
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