document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=960758>Question 960758</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The expression below can be rewritten in several ways.<BR>\n" );
document.write( "(4x-5y)(16x^2+kxy+25y^2)<BR>\n" );
document.write( "If this expression can be represented by (a+b)^3 where a and b are algebraic terms, what is the value of k?<BR>\n" );
document.write( "A. -40<BR>\n" );
document.write( "B. -20<BR>\n" );
document.write( "C.  9<BR>\n" );
document.write( "D.  40 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #587173 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=587173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a-b%29%5E3=%28a-b%29%28a%5E2-2ab%2Bb%5E2%29 ALIGN=MIDDLE  ALT=\"%28a-b%29%5E3=%28a-b%29%28a%5E2-2ab%2Bb%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "compare to\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284x-5y%29%2816x%5E2%2Bkxy%2B25y%5E2%29 ALIGN=MIDDLE  ALT=\"%284x-5y%29%2816x%5E2%2Bkxy%2B25y%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "so, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=4x ALIGN=MIDDLE  ALT=\"a=4x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=5y ALIGN=MIDDLE  ALT=\"b=5y\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kxy=2ab ALIGN=MIDDLE  ALT=\"kxy=2ab\"   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=kxy=2%2A4x%2A5y ALIGN=MIDDLE  ALT=\"kxy=2%2A4x%2A5y\"   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=kxy=40xy ALIGN=MIDDLE  ALT=\"kxy=40xy\"   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=k=40 ALIGN=MIDDLE  ALT=\"k=40\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so, your answer is D. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40 ALIGN=MIDDLE  ALT=\"40\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );