5.4 Equations Involving Logarithms

METHOD:
  1. For two logarithms of the same base, if logam=logan , then m = n
  2. Convert to index form, if logam=n , then m = an.


Example 1
Solve the following equation:
(a) log32+log3(x+5)=log3(3x1)
(b) log28x3=log2(2x1)
(c) 3logx2+2logx4logx256=1