document.write( "Question 453070: Determine the larger root of the following equation:
\n" ); document.write( "log(z) + log(z + 19) = 2 log(z + 2). \r
\n" ); document.write( "\n" ); document.write( "(Please round your answer to two decimal places.)
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\n" ); document.write( " Answer
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Algebra.Com's Answer #311364 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Determine the larger root of the following equation:
\n" ); document.write( "log(z) + log(z + 19) = 2 log(z + 2).
\n" ); document.write( ":
\n" ); document.write( "log(z(z+19)) = 2 log(z+2)
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\n" ); document.write( "log(z^2+19z) = log((z+2)^2)
\n" ); document.write( "therefore
\n" ); document.write( "z^2 + 19z = (z+2)^2
\n" ); document.write( "z^2 + 19z = z^2 + 4z + 4
\n" ); document.write( "z^2 - z^2 + 19z - 4z = 4
\n" ); document.write( "15z = 4
\n" ); document.write( "z = \"4%2F15\"
\n" ); document.write( "z = .267 is the only root
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