Jawabanmu

2014-09-12T17:27:00+07:00
³log 81 - ²log8 =
³log 3^4  - ²log 2³ = 4 -3 =1

2014-09-12T17:27:26+07:00
3 log 81 = 3 log 3 pangkat 4= 4
2 log 8 = 2 log 2 pangkat 3 =3
maka 4-3= 1