document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=168386>Question 168386</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this problem:\r<BR>\n" );
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document.write( "     A rectangular pond measures 3m by 5m. A concrete walk of uniform width is constructed around the pond. If the walk and pond together cover an area of 39m^2, how wide is the walk? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124117 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=124117\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3*5=15 M^2 FOR THE POND.<BR>\n" );
document.write( "(3+2X)(5+2X)=39<BR>\n" );
document.write( "15+10X+6X+4X^2-39=0<BR>\n" );
document.write( "4X^2+16X-24=0<BR>\n" );
document.write( "4(X^2+4X-6)=0<BR>\n" );
document.write( "USING THE QUADRATIC EQUATION<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >WE GET:<BR>\n" );
document.write( "X=(-4+-SQRT[4^2-4*1*-6])/2*1<BR>\n" );
document.write( "X=(-4+-SQRT16+24])/2<BR>\n" );
document.write( "X=(-4+-SQRT40)/2<BR>\n" );
document.write( "X=(-4+-6.325)/2<BR>\n" );
document.write( "X=(-4+6.32)/2<BR>\n" );
document.write( "X=2.32/2<BR>\n" );
document.write( "X=1.16 M. IS THE WIDTH OF THE WALK.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "(3+2*1.16)(5+2*1.16)=39<BR>\n" );
document.write( "(3*2.32)(5+2.32)=39<BR>\n" );
document.write( "5.32*7.32=39<BR>\n" );
document.write( "39~39 \r<BR>\n" );
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document.write( " </SPAN>\n" );
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