document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152917>Question 152917</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780618643103/algebrahomeworkh>College Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> This problem was given by the instructor in a seperate workbook & is not in my book. I take this class via Distance Learning at UGA, so I don't really see a teacher.<BR>\n" );
document.write( "\"A closed rectangular box with a surface area of 28 sq. inches is to be designed. The design of the box requires that the length of the box is 2 times the width, and the depth must be 4 inches. Find the length and width of the box.\"\r<BR>\n" );
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document.write( "I have tried to fit this into the formula for surface area, but I just can't figure this out. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112384 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=112384\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=width, so 2x=length\r<BR>\n" );
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document.write( "the surface area is 2[{length)(width)+(length)(depth)+(width)(depth)]\r<BR>\n" );
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document.write( "28=2[2x^2+8x+4x] __ dividing by 4 __ 7=x^2+6x __ subtracting 7 __ 0=x^2+6x-7\r<BR>\n" );
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document.write( "factoring __ 0=(x+7)(x-1)\r<BR>\n" );
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document.write( "x+7=0 __ x=-7 __ negative value not realistic\r<BR>\n" );
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document.write( "x-1=0 __ x=1 __ width=1 __ length=2 </SPAN>\n" );
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