document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=963407>Question 963407</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you help me on solving this logarithmic equation, and express irrational solutions in exact form <BR>\n" );
document.write( "log2(5x)=4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #588554 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=588554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log(5x)/log(2)=4 Multiply both sides by log(2):<BR>\n" );
document.write( "log(5x)= 4log(2) Let's work on the right side:<BR>\n" );
document.write( "4log(2)= log(2^4)= log(16) So now we have:<BR>\n" );
document.write( "log(5x)= log(16) Cancel the logarithms by taking exponents on both sides:<BR>\n" );
document.write( "5x=16 Divide both sides by 5<BR>\n" );
document.write( "x= 16/5\r<BR>\n" );
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