document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=603370>Question 603370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangular book is 7 cm longer than it is wide. its area is 144 cm find the length and width. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #380676 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=380676\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A = LW\r<BR>\n" );
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document.write( "144 = x(x+7)\r<BR>\n" );
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document.write( "x(x+7) = 144\r<BR>\n" );
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document.write( "x^2+7x = 144\r<BR>\n" );
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document.write( "x^2+7x-144 = 0\r<BR>\n" );
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document.write( "(x+16)(x-9) = 0\r<BR>\n" );
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document.write( "x+16 = 0 or x-9 = 0\r<BR>\n" );
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document.write( "x = -16 or x = 9\r<BR>\n" );
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document.write( "Throw out the negative solution to get the only solution of x = 9\r<BR>\n" );
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document.write( "So the width is x = <font color=\"red\">9 cm</font> and the length is x+7 = 9+7 = <font color=\"red\">16 cm</font>. </SPAN>\n" );
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