document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=883362>Question 883362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The perimeter of a rectangle is 40 inches, and the area is 84 square inches. Find the length and width of the rectangle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #533566 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=533566\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x and y dimensions.<BR>\n" );
document.write( "Perimeter,2x+2y=40 simplifiable to x+y=20.<BR>\n" );
document.write( "Area, xy=84.\r<BR>\n" );
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document.write( "Use substitution.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=20-x ALIGN=MIDDLE  ALT=\"y=20-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2820-x%29=84 ALIGN=MIDDLE  ALT=\"x%2820-x%29=84\"   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%2B20x-84=0 ALIGN=MIDDLE  ALT=\"-x%5E2%2B20x-84=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28x%5E2-20x%2B84=0%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x%5E2-20x%2B84=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Discriminant:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-20%29%5E2-4%2A84=64=8%5E2 ALIGN=MIDDLE  ALT=\"%28-20%29%5E2-4%2A84=64=8%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Continue in the general solution for a quadratic equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%2820%2B8%29%2F2=14 ALIGN=MIDDLE  ALT=\"x=%2820%2B8%29%2F2=14\"   DISABLED_style= \"max-width:90%; height:auto;\" >, guessing that the PLUS form should work and not the MINUS form.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=20-14=6 ALIGN=MIDDLE  ALT=\"y=20-14=6\"   DISABLED_style= \"max-width:90%; height:auto;\" >; but actually, either PLUS or MINUS form would work.  One way would give 14 as found, and the other would give 6.\r<BR>\n" );
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document.write( "<b>The dimensions are 14 and 6</b><BR>\n" );
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