document.write( "Question 750469: how do you solve this
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document.write( "log (x + 4 ) -log (x+2 ) = 3 + log (x - 2 )
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document.write( "should is start of with the quotient rule
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document.write( "bring all logs to one side first , take log (x-2) to the other side \n" );
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Algebra.Com's Answer #456586 by stanbon(75887) ![]() You can put this solution on YOUR website! log (x + 4 ) -log (x+2 ) = 3 + log (x - 2 ) \n" ); document.write( " 10 10 10\r \n" ); document.write( "\n" ); document.write( "------------------------ \n" ); document.write( "log[(x+4)/(x+2)]- log(x-2) = 3 \n" ); document.write( "---------------------------- \n" ); document.write( " log[(x+4)/((x+2)(x-2))] = 3 \n" ); document.write( "------- \n" ); document.write( " log[(x+4)/(x^2-4)] = 3 \n" ); document.write( "------------------ \n" ); document.write( "(x+4)/(x^2-4) = 10^3 = 1000 \n" ); document.write( "----- \n" ); document.write( "(x+4) = 1000x^2-4000 \n" ); document.write( "---- \n" ); document.write( "1000x^2 -x -4004 = 0 \n" ); document.write( "x = 2.0015 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |