document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=515222>Question 515222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My question: Find the difference quotient for f(x) = 7x^2-9x+2\r<BR>\n" );
document.write( "\n" );
document.write( "This is what I've come up with, I want to make sure I understand it and did it right!<BR>\n" );
document.write( "f(x+h) = 7(x+h)^2 - 9(x+h) + 2<BR>\n" );
document.write( "= 7(x+h)(x+h) - 9x-9h + 2<BR>\n" );
document.write( "=7[x^2 + 2hx+h^2] - 9x-9h + 2<BR>\n" );
document.write( "=7x^2 + 14hx+7h^2-9x-9h+2-(7x^2-9x+2)<BR>\n" );
document.write( "=7x^2 + 14hx+7h^2-9x-9h+2-7x^2+9x-2/h<BR>\n" );
document.write( "=14hx+7h^2-9h/h<BR>\n" );
document.write( "=h(14x+7h-9)/h<BR>\n" );
document.write( "=(14x+7h-9) Final Answer!<BR>\n" );
document.write( "Wow, these wear me out, I'm praying I did it right or at least close!!<BR>\n" );
document.write( "Thanks so much,<BR>\n" );
document.write( "Tracy </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343829 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=343829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have the correct answer. Congrats.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "One little nit-picky thing to point out. I would write the answer as 14x+7h-9 (ie remove the outer parenthesis as they are not needed). Other than that, everything is perfect. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );