document.write( "Question 20724: I REALLY REALLY NEED HELP A.S.A.P. What is the value of N in the equation: log\"8\"(n-3) + log\"8\"(n+4) = 1. I REALLY REALLY appreciate the help because I really need it. Sorry for the short notice. \n" ); document.write( "
Algebra.Com's Answer #9979 by kapilsinghi(68)\"\" \"About 
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log\"8\"(n-3) + log\"8\"(n+4) = 1
\n" ); document.write( "log\"8\"(n-3) + log\"8\"(n+4) = log\"8\"(8)
\n" ); document.write( "log\"8\"(n-3)(n+4) = log\"8\"(8)
\n" ); document.write( "taking antilog on both sides
\n" ); document.write( "n^2 + n - 12 = 8
\n" ); document.write( "n^2 + n - 20 = 0
\n" ); document.write( "(n +5)(n-4)=0
\n" ); document.write( "n = -5
\n" ); document.write( "or n = 4\r
\n" ); document.write( "\n" ); document.write( "by substitution n=4 seems correct\r
\n" ); document.write( "\n" ); document.write( "kapilsinghi123@gmail.com
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