nilai dari 3 log 54 dikurang 3 log 2 ditambah 2 log 20 dikurang 2 log 5

3 log 54 - 3 log 2 + 2 log 20 - 2 log 5
= 3 log 54/2 + 2 log 20/5
= 3 log 27 + 2 log 4
= 3 log 3³ + 2 log 2²
= 3. 3 log 3 + 2. 2 log 2
= 3(1)+2(1) = 3+2= 5

Jawaban = 5

*Correct me if I wrong :)