document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=381396>Question 381396</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Short Answer. The length of the side of a rectangular desk is given by 9x - 2y cm. The length of the front is given by 9x + 2y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of your answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #270519 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=270519\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The area is (9x - 2y)(9x + 2y) = 81x^2 - 4y^2 cm^2 (by the difference of two squares theorem). </SPAN>\n" );
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