document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=15879>Question 15879</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2log(x+3) - log(x+1) = log(2x+3)  What does x equal?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #7824 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=7824\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ir may help to rewrite the equation:\r<BR>\n" );
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document.write( "2log(x+3) = log(x+1) + log(2x+3) <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%28%28x%2B3%29%29%5E2+=+log+%28%28x%2B1%29%282x%2B3%29%29 ALIGN=MIDDLE  ALT=\"log%28%28x%2B3%29%29%5E2+=+log+%28%28x%2B1%29%282x%2B3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since log A = log B means that A=B, in the same way<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=log%28%28x%2B3%29%29%5E2+=+log+%28%28x%2B1%29%282x%2B3%29%29 ALIGN=MIDDLE  ALT=\"log%28%28x%2B3%29%29%5E2+=+log+%28%28x%2B1%29%282x%2B3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B3%29%5E2+=+%28x%2B1%29%2A%282x%2B3%29+ ALIGN=MIDDLE  ALT=\"%28x%2B3%29%5E2+=+%28x%2B1%29%2A%282x%2B3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+%2B+6x+%2B9+=+2x%5E2+%2B5x+%2B+3 ALIGN=MIDDLE  ALT=\"x%5E2+%2B+6x+%2B9+=+2x%5E2+%2B5x+%2B+3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+x%5E2-x-6 ALIGN=MIDDLE  ALT=\"0+=+x%5E2-x-6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+%28x-3%29%28x%2B2%29+ ALIGN=MIDDLE  ALT=\"0+=+%28x-3%29%28x%2B2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x= 3 or x= -2\r<BR>\n" );
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document.write( "You must reject x=-2, since it gives you the log of a negative, which is not defined in the resl numbers.  The final answer is x=3.\r<BR>\n" );
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document.write( "R^2 at SCC<BR>\n" );
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