5 log 256 4 log 16 4 log 64 July 8, 2019 16 32 64 128 5 log 256 4 log 16 kurang 4 log 64 5 log 256 4 log 16 dikurang 4 log 64 Log 4 16 Log5 64/log 5 4 (log5 625)*(log 4 64)