Nilai dari 2Log 12-2Log 3+2 Log 8 adalah

2log 12 - 2log 3 + 2 log 8 = 2log (2² x 3) - 2log 3 + 2log 2³
                                         = 2 x 2 log 2 + 2log 3 - 2log 3 + 3 x 2 log 2
                                         = 2 x 1 + 3 x 1
                                         = 5
catatan
alog b.c = alog b + alog c
alog a = 1