document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=35505>Question 35505</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534432956/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Let f(x) = 2x + 1 and g(x) = x^2 - 4 and find the following:\r<BR>\n" );
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document.write( "(fg)(x)\r<BR>\n" );
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document.write( "(g of f)(x) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21652 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=21652\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = 2x + 1<BR>\n" );
document.write( "g(x) = x^2 - 4<BR>\n" );
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document.write( "(fg)(x)=(2x+1)(x^2-4)=2x^3+x^2-8x-4<BR>\n" );
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document.write( "(g of f)(x) = (2x+1)^2 - 4 <BR>\n" );
document.write( "= (2x+1)(2x+1) - 4 = 4x^2 + 4x + 1 - 4 = 4x^2 + 4x - 3 </SPAN>\n" );
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