document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=506647>Question 506647</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A room has a floor area of 320 square feet. One dimension is 4 feet more than the other. Find the dimensions of the room. Set up a quadratic equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340201 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=340201\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A room has a floor area of 320 square feet. One dimension is 4 feet more than the other. Find the dimensions of the room. Set up a quadratic equation.<BR>\n" );
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document.write( "Let x = one of the dimensions<BR>\n" );
document.write( "Then x+4 = the other dimension<BR>\n" );
document.write( "Area = 320 = x(x+4)<BR>\n" );
document.write( "x^2 + 4x - 320 = 0<BR>\n" );
document.write( "This can be factored as:<BR>\n" );
document.write( "(x+20)(x-16) = 0<BR>\n" );
document.write( "Take the positive solution, x = 16<BR>\n" );
document.write( "So the dimensions are 16 and 20 ft. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );