document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=994448>Question 994448</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An above-ground swimming pool with a square base is to be constructed such that the surface area of the pool is 465 square feet. The height h of the pool is to be 4 feet (see figure.) What should the dimensions of the base be? (Hint: The surface area is S = x2 + 4xh.) <BR>\n" );
document.write( "length       ft  <BR>\n" );
document.write( "width        ft  <BR>\n" );
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 #613558 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=613558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "The base is square so length and width are the same.<BR>\n" );
document.write( "L=W=x; h=height=4ft<BR>\n" );
document.write( "Surface area=area of bottom+area of sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SA=x%5E2%2B4xh ALIGN=MIDDLE  ALT=\"SA=x%5E2%2B4xh\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SA=x%5E2%2B16x ALIGN=MIDDLE  ALT=\"SA=x%5E2%2B16x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=465ft%5E2=x%5E2%2B16x ALIGN=MIDDLE  ALT=\"465ft%5E2=x%5E2%2B16x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=x%5E2%2B16x-465 ALIGN=MIDDLE  ALT=\"0=x%5E2%2B16x-465\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=%28x-15%29%28x%2B31%29%0D%0A%7B%7B%7Bx-15=0 ALIGN=MIDDLE  ALT=\"0=%28x-15%29%28x%2B31%29%0D%0A%7B%7B%7Bx-15=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OR ALIGN=MIDDLE  ALT=\"OR\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B31=0 ALIGN=MIDDLE  ALT=\"x%2B31=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=15 ALIGN=MIDDLE  ALT=\"x=15\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=OR ALIGN=MIDDLE  ALT=\"OR\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-31 ALIGN=MIDDLE  ALT=\"x=-31\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ". <BR>\n" );
document.write( "Since -31 does not work,<BR>\n" );
document.write( "x=15 feet<BR>\n" );
document.write( "ANSWER: The length and the width are 15.<BR>\n" );
document.write( ".\r<BR>\n" );
document.write( "\n" );
document.write( "CHECK:<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SA=x%5E2%2B4xh ALIGN=MIDDLE  ALT=\"SA=x%5E2%2B4xh\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=465ft%5E2=%2815ft%29%5E2%2B4%2815ft%29%284ft%29 ALIGN=MIDDLE  ALT=\"465ft%5E2=%2815ft%29%5E2%2B4%2815ft%29%284ft%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=465ft%5E2=225ft%5E2%2B240ft%5E2 ALIGN=MIDDLE  ALT=\"465ft%5E2=225ft%5E2%2B240ft%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=465ft%5E2=465ft%5E2 ALIGN=MIDDLE  ALT=\"465ft%5E2=465ft%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );