document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84004>Question 84004</A>: <I><SPAN STYLE=\"word-break: break-all;\"> calculate the indicated value.\r<BR>\n" );
document.write( "\n" );
document.write( "f(x) = 14x^2 + 15x - 14<BR>\n" );
document.write( "g(x) = 14x^2 + 11x - 10<BR>\n" );
document.write( "find f(f(4)) \r<BR>\n" );
document.write( "\n" );
document.write( "I plugged in 4 for x and came to f(4)=270, would that mean that f(f(4))=270, and that I should plug in 270 which I think brings me to an answer of 10210036? Whats confusing me is that g(x) = 14x^2 + 11x - 10 is part of the question but it dosent ask to find g(f(4)) so Im not sure what to do with that part of the question. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #60451 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=60451\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = 14x^2 + 15x - 14<BR>\n" );
document.write( "g(x) = 14x^2 + 11x - 10<BR>\n" );
document.write( "find f(f(4)) <BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "f[f(4)] = f[14*4^2+15*14-1] <BR>\n" );
document.write( "=f[420]<BR>\n" );
document.write( "=14*420^2 + 15*420-14<BR>\n" );
document.write( "=2,469,796<BR>\n" );
document.write( "=============<BR>\n" );
document.write( "Comment: You are right; the g(x) is not part of f[f(4)].<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );