document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1046639>Question 1046639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A square garden is to be enlarged to a rectangular by adding 5 ft. to the length and deducting 4 ft. from the width, with area unchanged.  Determine present and new dimensions.\r<BR>\n" );
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document.write( "My partial attempt:\r<BR>\n" );
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document.write( "Area = length * width\r<BR>\n" );
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document.write( "Let s = side of square.\r<BR>\n" );
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document.write( "Square: \r<BR>\n" );
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document.write( "Length:  s     Width:  s      Area:  s^2\r<BR>\n" );
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document.write( "Rectangle:\r<BR>\n" );
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document.write( "Length:  s + 12   Width: s - 4    Area:  (s + 5) (s - 4)\r<BR>\n" );
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document.write( "Not sure how to proceed.  Thanks.\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #662114 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=662114\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area = length * width <BR>\n" );
document.write( "Let s = side of square.  A(square) = s^2<BR>\n" );
document.write( "Square: <BR>\n" );
document.write( "Length: s Width: s Area: s^2 \r<BR>\n" );
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document.write( "Rectangle: <BR>\n" );
document.write( "Length: s + 12 Width: s - 4<BR>\n" );
document.write( " Area: (s + 5) (s - 4) \r<BR>\n" );
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document.write( "area unchanged.<BR>\n" );
document.write( "(s + 5) (s - 4) = s^2<BR>\n" );
document.write( "s^2 + s - 20 = s^2<BR>\n" );
document.write( "s = 20ft for the Square<BR>\n" );
document.write( "25ft by 16ft the Rectangle\r<BR>\n" );
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document.write( "AND<BR>\n" );
document.write( "400ft^2 = 25ft*16ft  CHECKS! </SPAN>\n" );
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