document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=254515>Question 254515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The second order derivative d^2f/dx^2 of f (x)= x exp (-x) is?<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 #186875 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=186875\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The second order derivative d^2f/dx^2 of f (x)= x exp (-x) is?<BR>\n" );
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document.write( "y = x*e^-x<BR>\n" );
document.write( "y' = x*(-e^-x) + e^-x<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dy%5E2%2Fdx%5E2+=+x%2Ae%5E%28-x%29+-+e%5E%28-x%29 ALIGN=MIDDLE  ALT=\"dy%5E2%2Fdx%5E2+=+x%2Ae%5E%28-x%29+-+e%5E%28-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x-1%29%2Ae%5E%28-x%29 ALIGN=MIDDLE  ALT=\"%28x-1%29%2Ae%5E%28-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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