document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=156656>Question 156656</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 15 inches by 30 inches by cutting out equal squares of side x at each corner and then folding up the sides\r<BR>\n" );
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document.write( "So I have to find the volume when l=30-2x, w=15-2x and h=x\r<BR>\n" );
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document.write( "I tried to multiply everything out and got 4x^3-60x^2+450x... but got stuck... not sure wether doing that was right and if so how to continue - looked at taking x out, but still ended up in a big mess - could someone do a step by step breakdown please?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115461 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=115461\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> it looks like you might have skipped a term...\r<BR>\n" );
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document.write( "FOILing l & w gives __ 450-60x-30x+4x^2 __ 4x^2-90x+450\r<BR>\n" );
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document.write( "distributing h gives __ 4x^3-90x^2+450x </SPAN>\n" );
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