document.write( "Question 1189149: If log81^x=-3/4 then x=? \n" ); document.write( "
Algebra.Com's Answer #820402 by Alan3354(69443)\"\" \"About 
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If log81^x=-3/4 then x=?
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\n" ); document.write( "If you mean common logs, base 10:
\n" ); document.write( "log(81^x) = -3/4
\n" ); document.write( "x*log(81) = -3/4
\n" ); document.write( "\"x+=+-%283%2F4%29%2Flog%2881%29\"
\n" ); document.write( "x =~ -0.39298
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