document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=972887>Question 972887</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My daughter and I are arguing over this problem. So a second opinion would be greatly appreciated. \r<BR>\n" );
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document.write( "A rectangle has a length that is 4 feet greater than its width. If each side of the rectangle is increased by 3 feet, write an equation to represent the area of the new rectangle. My daughter's answer was <BR>\n" );
document.write( "4x^2+15x+9.\r<BR>\n" );
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document.write( "Please show steps. I incorrectly submitted wrong numbers before, so having difficulty explaining.<BR>\n" );
document.write( "Thanks in advance and any feedback is appreciated. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #595125 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=595125\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "W=original width; L=original length=W+4ft<BR>\n" );
document.write( "W+3ft=new width; L+3ft=new length=W+7ft<BR>\n" );
document.write( ".<BR>\n" );
document.write( "NewArea=new length x new width<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=%28W%2B7ft%29%28W%2B3ft%29 ALIGN=MIDDLE  ALT=\"NewArea=%28W%2B7ft%29%28W%2B3ft%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=W%5E2%2B10W%2B21 ALIGN=MIDDLE  ALT=\"NewArea=W%5E2%2B10W%2B21\"   DISABLED_style= \"max-width:90%; height:auto;\" >ANSWER: This is the equation:Area=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W%5E2%2B10W%2B21 ALIGN=MIDDLE  ALT=\"W%5E2%2B10W%2B21\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ". <BR>\n" );
document.write( "CHECK: (The assigned width is arbitrary, just to check.  Any number will work.)<BR>\n" );
document.write( "Let W=2 feet<BR>\n" );
document.write( "L=W+4ft=6 feet<BR>\n" );
document.write( "New length=L+3 feet=6 feet+3 feet=9 feet<BR>\n" );
document.write( "New width=W+3 feet=2 feet+3 feet=5 feet<BR>\n" );
document.write( "New Area=new length x new width=9 feet x 5 feet=45 square feet<BR>\n" );
document.write( ".<BR>\n" );
document.write( "CHECK New Equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=W%5E2%2B10W%2B21 ALIGN=MIDDLE  ALT=\"NewArea=W%5E2%2B10W%2B21\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=%282ft%29%5E2%2B10ft%282ft%29%2B21ft%5E2 ALIGN=MIDDLE  ALT=\"NewArea=%282ft%29%5E2%2B10ft%282ft%29%2B21ft%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=4ft%5E2%2B20ft%5E2%2B21ft%5E2 ALIGN=MIDDLE  ALT=\"NewArea=4ft%5E2%2B20ft%5E2%2B21ft%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=NewArea=45ft%5E2 ALIGN=MIDDLE  ALT=\"NewArea=45ft%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Same as using (new length) x (new width) </SPAN>\n" );
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