document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1158977>Question 1158977</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that the functions u and w are defined as follows.<BR>\n" );
document.write( "u(x)=-2x-1<BR>\n" );
document.write( "w(x)=2x^2<BR>\n" );
document.write( "Find the following.<BR>\n" );
document.write( "(w*u)(1)=<BR>\n" );
document.write( "(u*w)(1)= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #781976 by </B><A HREF=/tutors/aboutme.mpl?userid=Amily_2190><B>Amily_2190(27)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Amily_2190><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=781976\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x*y)(z)=(x(y(z)))\r<BR>\n" );
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document.write( "(w*u)(1)=(w(u(1)))<BR>\n" );
document.write( "u(1)=-2(1)-1=-2-1=-3<BR>\n" );
document.write( "w(-3)=2(-3)^2=2(9)=18<BR>\n" );
document.write( "(w*u)(1)=18\r<BR>\n" );
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document.write( "(u*w)=(u(w(1)))<BR>\n" );
document.write( "w(1)=2(1)^2=2(1)=2<BR>\n" );
document.write( "u(2)=-2(2)-1=-4-1=-5<BR>\n" );
document.write( "(u*w)=-5 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );