document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1207564>Question 1207564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The area of a playground is 153 m square if the length of the playground is decreased by 4 m and the breadth is increased by 4 m if playground become a square decide of the square in metre is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #845503 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=845503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "We can work the problem \"backwards\": start with the square of side length x, then increase one dimension by 4m and decrease the other by 4m to get a rectangular playground with area 153 m^2.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-4%29%28x%2B4%29=153 ALIGN=MIDDLE  ALT=\"%28x-4%29%28x%2B4%29=153\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-16=153 ALIGN=MIDDLE  ALT=\"x%5E2-16=153\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=169 ALIGN=MIDDLE  ALT=\"x%5E2=169\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=13 ALIGN=MIDDLE  ALT=\"x=13\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: the side length of the square is 13m<br><BR>\n" );
document.write( "CHECK: (x-4)(x+4) = (13-4)(13+4) = 9*17 = 153<br><BR>\n" );
document.write( " </SPAN>\n" );
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