Question 946007
log x + log (x2 - 16) - log 7 - log (x - 4)
=log x+ log ((x+4)(x-4))-log 7 - log (x - 4)
=log x+log (x+4)+log (x-4)-log 7-log (x-4)
=log x+log (x+4)-log 7