document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=848222>Question 848222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle is 4 cm less than twice it's width. Find the length and the width given the area is 70 cm^2. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #510954 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=510954\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle is 4 cm less than twice it's width. Find the length and the width given the area is 70 cm^2.\r<BR>\n" );
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document.write( "Let x = width\r<BR>\n" );
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document.write( "\"The length of a rectangle is 4 cm less than twice it's width\" ----> Length = 2x - 4\r<BR>\n" );
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document.write( "Area = Length * Width\r<BR>\n" );
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document.write( "70 = (2x-4) * x\r<BR>\n" );
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document.write( "70 = x(2x-4)\r<BR>\n" );
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document.write( "70 = 2x^2-4x\r<BR>\n" );
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document.write( "0 = 2x^2-4x - 70\r<BR>\n" );
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document.write( "2x^2 - 4x - 70 = 0\r<BR>\n" );
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document.write( "2(x^2 - 2x - 35) = 0\r<BR>\n" );
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document.write( "x^2 - 2x - 35 = 0/2\r<BR>\n" );
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document.write( "x^2 - 2x - 35 = 0\r<BR>\n" );
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document.write( "(x - 7)(x + 5) = 0\r<BR>\n" );
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document.write( "x - 7 = 0 or x + 5 = 0\r<BR>\n" );
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document.write( "x = 7 or x = -5\r<BR>\n" );
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document.write( "Toss the negative result. You can't have a negative width.\r<BR>\n" );
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document.write( "The <font size = 4 color=\"red\">width is 7 cm</font>\r<BR>\n" );
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document.write( "Width = x = 7\r<BR>\n" );
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document.write( "Length = 2x - 4\r<BR>\n" );
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document.write( "Length = 2(7) - 4 ... plug in x = 7\r<BR>\n" );
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document.write( "Length = 14 - 4\r<BR>\n" );
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document.write( "Length = 10\r<BR>\n" );
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document.write( "The <font size = 4 color=\"red\">length is 10 cm</font> </SPAN>\n" );
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