Tolong bantu jawab, beserta caranya, terima kasih

3log 81 + 2log 1/8 - 6 log 216
= 3log3^4 + 2log 2^-3 - 6 log 6^3
= 4 3log3 + -3 2log2 - 3 6log6
=4 + (-3) - 3
= -2