document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=386970>Question 386970</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The width of a rectangle is 3cm less than its length. The rectangle has area of 40cm^2. What is the length of the rectangle?\r<BR>\n" );
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document.write( "Please help Im not very good at word problems!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #273490 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=273490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The width of a rectangle is 3cm less than its length. The rectangle has area of 40cm^2. What is the length of the rectangle? <BR>\n" );
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document.write( "Let length be \"x\":<BR>\n" );
document.write( "Then width is \"x-3\":<BR>\n" );
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document.write( "Area = length * width<BR>\n" );
document.write( "40 = x(x-3)<BR>\n" );
document.write( "x^2-3x-40 = 0<BR>\n" );
document.write( "(x-8)(x+5) = 0<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "x = 8 cm (length)<BR>\n" );
document.write( "x-3 = 5 cm (width)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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