document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=197872>Question 197872</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular pen has a length of 3 feet greater than its width.  If both dimensions are increased by 5 feet, which expression gives the resulting increase in area?<BR>\n" );
document.write( "a.  10x + 40<BR>\n" );
document.write( "b.  13x + 40<BR>\n" );
document.write( "c.  x2 + 13x + 40<BR>\n" );
document.write( "d.  x2 + 10x =40\r<BR>\n" );
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document.write( "My attempt: area = length x width<BR>\n" );
document.write( "original pen would be x(x+3)=x2+3x<BR>\n" );
document.write( "new pen would be (x+5)(x+8)=x2+13x+40<BR>\n" );
document.write( "However answer sheet says correct answer is A.\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #148395 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=148395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What they're asking for is: \"How much bigger<BR>\n" );
document.write( "is the 2nd pen than the 1st?<BR>\n" );
document.write( "So, in words<BR>\n" );
document.write( "Difference = (area of 2nd pen) - (area of 1st pen)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B1%5D+=+x%2A%28x%2B3%29 ALIGN=MIDDLE  ALT=\"A%5B1%5D+=+x%2A%28x%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B2%5D+=+%28x%2B5%29%2A%28x+%2B+8%29 ALIGN=MIDDLE  ALT=\"A%5B2%5D+=+%28x%2B5%29%2A%28x+%2B+8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B2%5D+-+A%5B1%5D+=+x%5E2+%2B+13x+%2B+40+-+x%5E2+-+3x ALIGN=MIDDLE  ALT=\"A%5B2%5D+-+A%5B1%5D+=+x%5E2+%2B+13x+%2B+40+-+x%5E2+-+3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B2%5D+-+A%5B1%5D+=+10x+%2B+40 ALIGN=MIDDLE  ALT=\"A%5B2%5D+-+A%5B1%5D+=+10x+%2B+40\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );