document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=345078>Question 345078</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find a polynomial for the perimeter and for the area.<BR>\n" );
document.write( "z+2 is the width on the top of the box <BR>\n" );
document.write( "z is the right side of the box. <BR>\n" );
document.write( "The perimeter is<BR>\n" );
document.write( "The area is  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246845 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=246845\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Usually we talk about rectangles having length (shown as 'l') and width (shown as 'w'), so the P = 2l + 2w.\r<BR>\n" );
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document.write( "You have the values to substitute for 'l' and 'w' <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=l+=+z%2B2 ALIGN=MIDDLE  ALT=\"l+=+z%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w+=+z ALIGN=MIDDLE  ALT=\"w+=+z\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+=+2l+%2B+2w+=+2%2A%28z%2B2%29+%2B+2%2Az++=+2z+%2B+4+%2B+2z ALIGN=MIDDLE  ALT=\"P+=+2l+%2B+2w+=+2%2A%28z%2B2%29+%2B+2%2Az++=+2z+%2B+4+%2B+2z\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Collecting terms, we have \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+=+4z+%2B+4 ALIGN=MIDDLE  ALT=\"P+=+4z+%2B+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The area is found much the same way.\r<BR>\n" );
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document.write( "We know the area (A) of a rectangle = length times width = l * w.\r<BR>\n" );
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document.write( "Substituting what we know about l and w, we have:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+%28z%2B2%29+%2A+z+=+z%5E2+%2B+2z ALIGN=MIDDLE  ALT=\"A+=+%28z%2B2%29+%2A+z+=+z%5E2+%2B+2z\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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