document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=742189>Question 742189</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve and check<BR>\n" );
document.write( "a) 2log(x-1) = 2+ log 100 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #452403 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=452403\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2*log(x-1)=2+log(100)<BR>\n" );
document.write( "2log(x-1)-log(100)=2<BR>\n" );
document.write( "log(x-1)^2-log(100)=2<BR>\n" );
document.write( "log((1/100)(x-1)^2)=2\r<BR>\n" );
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document.write( "What you do next depends on what the base is.  Assuming you are using some base, b, you would transform:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2=%281%2F100%29%2A%28x-1%29%5E2 ALIGN=MIDDLE  ALT=\"b%5E2=%281%2F100%29%2A%28x-1%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Also, looking carefully at the factor on the right side,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2=%28%28x-1%29%2F10%29%5E2 ALIGN=MIDDLE  ALT=\"b%5E2=%28%28x-1%29%2F10%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Seeing that, the base must be equal to the expression shown in the same position on the rightside:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=%28x-1%29%2F10 ALIGN=MIDDLE  ALT=\"b=%28x-1%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "From this, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10b=x-1 ALIGN=MIDDLE  ALT=\"10b=x-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=10b%2B1%29 ALIGN=MIDDLE  ALT=\"highlight%28x=10b%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  You need to know the value of b in order to find anything further. </SPAN>\n" );
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