document.write( "Question 20724: I REALLY REALLY NEED HELP A.S.A.P. What is the value of N in the equation: log(n-3) + log
(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)![]() ![]() ![]() You can put this solution on YOUR website! log \n" ); document.write( "log \n" ); document.write( "log \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 \n" ); document.write( " \n" ); document.write( " |