document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=766372>Question 766372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this problem\r<BR>\n" );
document.write( "\n" );
document.write( "If f(x) = 3^x, then f(x+1) - f(x) = ?\r<BR>\n" );
document.write( "\n" );
document.write( "f(x) = 3^x<BR>\n" );
document.write( "f(x+1) &#8722; f(x)<BR>\n" );
document.write( "= 3^(x+1) &#8722; 3^x<BR>\n" );
document.write( "= 3^x (3 &#8722; 1)<BR>\n" );
document.write( "= 2 * f(x)\r<BR>\n" );
document.write( "\n" );
document.write( "How did you get  3^x (3 &#8722; 1) ??\r<BR>\n" );
document.write( "\n" );
document.write( "Thank you so much </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466857 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466857\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I will start from this point<BR>\n" );
document.write( "= 3^(x+1) &#8722; 3^x<BR>\n" );
document.write( "apply law of exponents     3^(x+1) = 3^x * 3<BR>\n" );
document.write( "= 3^x * 3 - 3^x<BR>\n" );
document.write( "= 3^x * (3 - 1)<BR>\n" );
document.write( "= 2* 3^x<BR>\n" );
document.write( "= 2* f(x)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );