document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169324>Question 169324</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This problem states, log base 9 (x-7) + log base 9 (x-7) is equal to 1.<BR>\n" );
document.write( "I have done this over and over and can not seem to come up with the right answer. :)<BR>\n" );
document.write( "log( 9, (x-7) + log( 9, (x-7) = 1<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124823 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=124823\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Applying \"log rules\":<BR>\n" );
document.write( "log9(x-7) + log9(x-7) = 1<BR>\n" );
document.write( "log9((x-7)(x-7)) = 1<BR>\n" );
document.write( "(x-7)(x-7) = 9^1<BR>\n" );
document.write( "(x-7)(x-7) = 9<BR>\n" );
document.write( "x^2-7x-7x+49 = 9<BR>\n" );
document.write( "x^2-14x+49 = 9<BR>\n" );
document.write( "x^2-14x+40 = 0<BR>\n" );
document.write( "(x-10)(x-4) = 0<BR>\n" );
document.write( ".<BR>\n" );
document.write( "x = {10,4}\r<BR>\n" );
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