document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=437729>Question 437729</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for x.\r<BR>\n" );
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document.write( "log3 (x+4) + log3 (x-4) = 1\r<BR>\n" );
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document.write( "Check the validity of each solution in the original equation.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #302795 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=302795\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for x.\r<BR>\n" );
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document.write( "log3 (x+4) + log3 (x-4) = 1\r<BR>\n" );
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document.write( "log3(x^2-16) = 1<BR>\n" );
document.write( "x^2-16 = 3<BR>\n" );
document.write( "x^2 = 19<BR>\n" );
document.write( "Positive solution:<BR>\n" );
document.write( "x = sqrt(19)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============= </SPAN>\n" );
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