document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=694167>Question 694167</A>: <I><SPAN STYLE=\"word-break: break-all;\"> area of a rectangle: A=LW\r<BR>\n" );
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document.write( "The are of this rectangle is 39 square units. Find its length (the horizontal side ) and width (the vertical side)\r<BR>\n" );
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document.write( "length)x+5<BR>\n" );
document.write( "width) x-5\r<BR>\n" );
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document.write( "a) write an equation using the formula and the given information.<BR>\n" );
document.write( "39=? (do not multiply)\r<BR>\n" );
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document.write( "b) solve the equation, giving only the solution(s) that make sense in the problem. The solution for x is ?\r<BR>\n" );
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document.write( "c) use the solution to find the indicated dimensions of the figure.<BR>\n" );
document.write( "Length=?   Width=? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #427777 by </B><A HREF=/tutors/aboutme.mpl?userid=ShaunaJS><B>ShaunaJS(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ShaunaJS><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=427777\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x+5)(x-5)=39<BR>\n" );
document.write( "x^2-5x+5x-25=39<BR>\n" );
document.write( "x^2-25=39<BR>\n" );
document.write( "x^2-64=0<BR>\n" );
document.write( "x^2-8x+8x-64=0<BR>\n" );
document.write( "x(x-8)+8(x-8)=0<BR>\n" );
document.write( "(x-8)(x+8)=0<BR>\n" );
document.write( "x-8=0 or x+8=0<BR>\n" );
document.write( "x=8 or x=-8<BR>\n" );
document.write( "8+5=13, 8-5=3, -8+5=-3, -8-5=-13<BR>\n" );
document.write( "You can't have negatives as a length or width.<BR>\n" );
document.write( "So x=8<BR>\n" );
document.write( "Length=8+5<BR>\n" );
document.write( "Width=8-5<BR>\n" );
document.write( "Length=13<BR>\n" );
document.write( "Width=3 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );