document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=175071>Question 175071</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the length of a rectangular swimming pool is 2x-1 meters,and the width is x + 2meters. Write a polynomial A(x) that represents the area. Find A (5). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #130171 by </B><A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><B>SAT Math Tutor(36)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=SAT+Math+Tutor><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=130171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The formula for the area of a rectangle is length * width.  So, the area here is:\r<BR>\n" );
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document.write( "(2x - 1) * (x + 2)\r<BR>\n" );
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document.write( "Using FOIL:\r<BR>\n" );
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document.write( "(2x * x) + (2x * 2) + (-1 * x) + (-1 * 2)\r<BR>\n" );
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document.write( "2x^2 + 4x - x - 2\r<BR>\n" );
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document.write( "2x^2 + 3x - 2\r<BR>\n" );
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document.write( "So, your function is A(x) = 2x^2 + 3x - 2 </SPAN>\n" );
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