document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=526441>Question 526441</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve for x\r<BR>\n" );
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document.write( "log x +log(x-15)=2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #348516 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=348516\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log x +log(x-15)=2<BR>\n" );
document.write( "log x(x-15)=2<BR>\n" );
document.write( "x(x-15)=10^2<BR>\n" );
document.write( "x^2-15x=100<BR>\n" );
document.write( "x^2-15x-100=0<BR>\n" );
document.write( "(x-20)(x+5) = 0<BR>\n" );
document.write( "x = {-5, 20}<BR>\n" );
document.write( "we can throw out the negative solution (extraneous) leaving:<BR>\n" );
document.write( "x = 20 </SPAN>\n" );
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