document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=722980>Question 722980</A>: <I><SPAN STYLE=\"word-break: break-all;\"> log[10](x)+log[10](3x+55)=2\r<BR>\n" );
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document.write( "How do you solve this? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442966 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=442966\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> log[10](x)+log[10](3x+55)=2 <BR>\n" );
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document.write( "log[x(3x+55)] = 2<BR>\n" );
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document.write( "3x^2+55x = 10^2<BR>\n" );
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document.write( "3x^2 + 55x -100 = 0<BR>\n" );
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document.write( "x = [-55 +- sqrt(55^2-4*3*-100)]/6<BR>\n" );
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document.write( "x = 5/3 or x = -20<BR>\n" );
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document.write( "Usable solution:<BR>\n" );
document.write( "x = 5/3<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================== </SPAN>\n" );
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