document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1064855>Question 1064855</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the square has 2 inches added to its length and 1 inch added to its width, creating an area of 42 inches , find the length of the of the original square \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #679950 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=679950\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Length of each side = x\r<BR>\n" );
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document.write( "{{[ (x+2)(x+1) = 42 }}}<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5E2+%2B+3x+%2B+2+=+42+ ALIGN=MIDDLE  ALT=\"+x%5E2+%2B+3x+%2B+2+=+42+\"   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+%2B+3x+-+40+=+0+ ALIGN=MIDDLE  ALT=\"+x%5E2+%2B+3x+-+40+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=++%28x-5%29%28x%2B8%29+=+0+ ALIGN=MIDDLE  ALT=\"++%28x-5%29%28x%2B8%29+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "x = 5   or  x = -8  (discard -8 b/c length must be > 0)\r<BR>\n" );
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document.write( "If x = 5,  (x+2)(x+1) = (7)(6) = 42  (ok)\r<BR>\n" );
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document.write( "Ans:  x=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%285%29 ALIGN=MIDDLE  ALT=\"highlight%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >in\r<BR>\n" );
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document.write( "—<BR>\n" );
document.write( "Also, area of a square is always in (unit)^2:  e.g.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=in%5E2 ALIGN=MIDDLE  ALT=\"in%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >  not inches.     <BR>\n" );
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