document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1072656>Question 1072656</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An open-topped box is made from a piece of cardboard measuring 20cm by 25cm. The sides of the box are formed by removing a square from each corner. The base of the box has an area of 300cm^2.\r<BR>\n" );
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document.write( "a) Write an equation to represent the situation.\r<BR>\n" );
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document.write( "b) Use the quadratic formula to determine what amount needs to be removed from each side.\r<BR>\n" );
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document.write( "c) What are the dimensions of the box? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #687490 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=687490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x, the side length of each square corner to remove.\r<BR>\n" );
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document.write( "Area of the two dimensions for the base<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2820-2x%29%2825-2x%29=300 ALIGN=MIDDLE  ALT=\"%2820-2x%29%2825-2x%29=300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=500-50x-40x%2B4x%5E2-300=0 ALIGN=MIDDLE  ALT=\"500-50x-40x%2B4x%5E2-300=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2-90x%2B200=0 ALIGN=MIDDLE  ALT=\"4x%5E2-90x%2B200=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%2890%2B-+sqrt%284900%29%29%2F8 ALIGN=MIDDLE  ALT=\"x=%2890%2B-+sqrt%284900%29%29%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%2890%2B-+70%29%2F8 ALIGN=MIDDLE  ALT=\"x=%2890%2B-+70%29%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Assuming the MINUS-form works better,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=20%2F8 ALIGN=MIDDLE  ALT=\"x=20%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=5%2F2 ALIGN=MIDDLE  ALT=\"x=5%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=2%261%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%28x=2%261%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "(The PLUS-form, giving x=20, will not work in the description.) </SPAN>\n" );
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