document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1115764>Question 1115764</A>: <I><SPAN STYLE=\"word-break: break-all;\">  if the area of a rectangle=84ft^2 find its dimensions <BR>\n" );
document.write( "area of a rectangle is L*W <BR>\n" );
document.write( "W=?<BR>\n" );
document.write( "L=5ft-w </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #730587 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=730587\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I think you meant to state the problem this way,<BR>\n" );
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document.write( "width(w) is 5ft less than the length(l)<BR>\n" );
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document.write( "l * (l-5) = 84<BR>\n" );
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document.write( "l^2 -5l = 84<BR>\n" );
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document.write( "l^2 -5l -84 = 0<BR>\n" );
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document.write( "(l-12) * (l+7) = 0<BR>\n" );
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document.write( "l = 12 or l = -7<BR>\n" );
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document.write( "we reject the negative value for l<BR>\n" );
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document.write( "l = 12<BR>\n" );
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document.write( "w = 12 -5 = 7<BR>\n" );
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document.write( "dimensions of the rectangle are length = 12 feet and width = 7 feet<BR>\n" );
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document.write( "********** stated problem *********<BR>\n" );
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document.write( "(5-w) * w = 84<BR>\n" );
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document.write( "5w -w^2 = 84<BR>\n" );
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document.write( "w^2 -5w +84 = 0<BR>\n" );
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document.write( "the discriminant is<BR>\n" );
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document.write( "square root((-5)^2 -4 * 1 *84) =<BR>\n" );
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document.write( "square root(25 -336) =<BR>\n" );
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document.write( "square root(-311) =<BR>\n" );
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document.write( "an imaginary number involving i(square root(-1)<BR>\n" );
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document.write( "this problem has no real solution<BR>\n" );
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