document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=235566>Question 235566</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pear farm contains 126 trees. The number of trees per row is five more than the number of rows. Find the number of rows. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #173472 by </B><A HREF=/tutors/aboutme.mpl?userid=Stitch><B>Stitch(470)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Stitch><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=173472\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Setup:<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "A = Number of Rows<BR>\n" );
document.write( "B = Number of Trees per row<BR>\n" );
document.write( "Equation 1: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AB+=+126 ALIGN=MIDDLE  ALT=\"A%2AB+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Equation 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+B+-+5 ALIGN=MIDDLE  ALT=\"A+=+B+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solution:<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Plug (B-5) into Equation 1 for A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AB+=+126 ALIGN=MIDDLE  ALT=\"A%2AB+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B-5%29%2AB+=+126 ALIGN=MIDDLE  ALT=\"%28B-5%29%2AB+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" > Rewrite the equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%5E2-5B+=+126 ALIGN=MIDDLE  ALT=\"B%5E2-5B+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" > Set the equation to 0 by subtract 126 from both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%5E2-5B+-126+=+0 ALIGN=MIDDLE  ALT=\"B%5E2-5B+-126+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find the factors of 126<BR>\n" );
document.write( "The factors are: 1, 2, 3, 6, 7, 9, 14, 18 21, 42,63,126<BR>\n" );
document.write( "Notice that 9 and 14 are the factors that are 5 apart and we have a -5B<BR>\n" );
document.write( "So the equation can be foiled<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%5E2-5B+-126+=+0 ALIGN=MIDDLE  ALT=\"B%5E2-5B+-126+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%5E2-5B+-126+=+0+=+%28B%2B9%29%2A%28B-14%29 ALIGN=MIDDLE  ALT=\"B%5E2-5B+-126+=+0+=+%28B%2B9%29%2A%28B-14%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Looking at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B%2B9%29%2A%28B-14%29+=+0 ALIGN=MIDDLE  ALT=\"%28B%2B9%29%2A%28B-14%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > we see two solutions<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+%2B+9+=+0 ALIGN=MIDDLE  ALT=\"B+%2B+9+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > rewritten as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+-9 ALIGN=MIDDLE  ALT=\"B+=+-9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "& <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+-+14+=+0 ALIGN=MIDDLE  ALT=\"B+-+14+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > rewritten as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B+=+14 ALIGN=MIDDLE  ALT=\"B+=+14\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Since we can not have a negative number of trees, we will use B = 14\r<BR>\n" );
document.write( "\n" );
document.write( "Now plug 14 into equation 2 for B<BR>\n" );
document.write( "Equation 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+B+-+5 ALIGN=MIDDLE  ALT=\"A+=+B+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+14+-+5 ALIGN=MIDDLE  ALT=\"A+=+14+-+5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+9 ALIGN=MIDDLE  ALT=\"A+=+9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Check your answer:<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Using A = 9 & B = 14 Solve equation 1<BR>\n" );
document.write( "Equation 1: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2AB+=+126 ALIGN=MIDDLE  ALT=\"A%2AB+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14+%2A+9+=+126 ALIGN=MIDDLE  ALT=\"14+%2A+9+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=126+=+126 ALIGN=MIDDLE  ALT=\"126+=+126\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );