2 log 5/16 berapa ya?

jawab

²log (5/16) = ²log 5 - ²log 16 
= ²log 5 - ²log 2⁴
= ²log 5 - 4

2 × log 5/16
= 2 log 5 - 2 log 16
= 2 log 5 - 2 log 2^4
= 2 log 5 - 8 log 2