4 log 81 dikali 3 log 32

4 log 81 × 3 log 32
= 2^2 log 3^4 × 3 log 2^5
= 4/2 (2 log 3) × 5 (3 log 2)
= 10 (2 log 3) × (3 log 2)
= 10

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