document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=617684>Question 617684</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose two sides of a square are given as x + 3 and 12 - x. What is its area?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #388483 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=388483\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If this is a square, then it has equal sides. So x+3 = 12-x\r<BR>\n" );
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document.write( "Solve for x\r<BR>\n" );
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document.write( "x+3 = 12-x\r<BR>\n" );
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document.write( "x+x = 12-3\r<BR>\n" );
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document.write( "2x = 9\r<BR>\n" );
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document.write( "x = 9/2\r<BR>\n" );
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document.write( "x = 4.5\r<BR>\n" );
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document.write( "So each side is 4.5 + 3 = 7.5 units.\r<BR>\n" );
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document.write( "So the area is 7.5^2 = 56.25 square units.\r<BR>\n" );
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document.write( "If this is really a rectangle, then the area is simply \r<BR>\n" );
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document.write( "A = (x+3)(12-x)\r<BR>\n" );
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document.write( "A = 12x - x^2 + 36 - 3x\r<BR>\n" );
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document.write( "A = -x^2 + 9x + 36 </SPAN>\n" );
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