Question

solve these logarithms

solve for x:
1 ) log 81 / log 9 = log x
2 ) log (x+1) - log (x-1)=1

Answer 1

2) lag (A+B)-log(A-B)=log|A+B|/|A-B|=1

Answer 2

solve this using the formula

LOG A+B/LOG A-B=1