document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1000088>Question 1000088</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Log81^x=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #617580 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=617580\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log(81^x) = 9<BR>\n" );
document.write( "since log(81^x) = x*log(81), this equation becomes:<BR>\n" );
document.write( "x*log(81) = 9<BR>\n" );
document.write( "divide both sides of this equation by log(81) to get:<BR>\n" );
document.write( "x = 9/log(81)<BR>\n" );
document.write( "use your calculator to find log(81) to get:<BR>\n" );
document.write( "x = 9/1.908485019<BR>\n" );
document.write( "solve for x to get:<BR>\n" );
document.write( "x = 4.715782367\r<BR>\n" );
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document.write( "log(81^x) = 9 becomes:<BR>\n" );
document.write( "log(81^(4.715782367)) = 9 which becomes:<BR>\n" );
document.write( "log(1,000,000,000) = 9 which becomes:<BR>\n" );
document.write( "9 = 9\r<BR>\n" );
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document.write( "your solution is that x = 1,000,000,000 which is the same as x = 10^9.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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