3 log 2 = P dan 2 log 7 = Q maka 14 log 54 =

3log2=p
2log7=q
3log7=pq
14log54=3log54/3log14
=3log27+3log2/3log7+3log2
=3^1log3^3+3log2/3log7+3log2
=3/1.3log3+3log2/3log7+3log2
=3.1+p/pq+p
=3+p/pq+p