document.write( "Question 415755: 2log[base 3](x+4)-log[base 3]9=2 \n" ); document.write( "
\n" ); document.write( "Hi\n" ); document.write( "\r\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " 3^2 = (x+4)^2/9\n" ); document.write( " 81= (x+4)^2\n" ); document.write( " ± 9 = x + 4\n" ); document.write( " -4 ± 9 = x (x = -13 is an Extraneous solution)\n" ); document.write( " x = 5