document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=82424>Question 82424</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle is 4 times the width, and the area is 256 square feet. Find the length and the widthe of the rectangle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59087 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=59087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let x=width<BR>\n" );
document.write( "Then 4x=length\r<BR>\n" );
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document.write( "Area of a rectangle = Length times Width=4x*x\r<BR>\n" );
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document.write( "So:\r<BR>\n" );
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document.write( "4x^2=256 divide both sides by 4\r<BR>\n" );
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document.write( "x^2=64  take sqrt of both sides\r<BR>\n" );
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document.write( "x=+-8 cm discount negative value for x. \r<BR>\n" );
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document.write( "x=8 cm--------------width<BR>\n" );
document.write( "4x=4*8=32 cm-----------length\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "A=8*32=256<BR>\n" );
document.write( "256=256\r<BR>\n" );
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document.write( "Hope this helps----ptaylor </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );