[tex] (3p^2 q)^3 \div 9 p q^2 [/tex] The above is a simple algebra expression. The question concerns the correct interpretation of the divisor in the above example. Strictly speaking I would have thought that only “9” is the divisor here and if you wanted the whole “9pq^2” as the divisor then you should put it in parentheses. But it appears many people interpret the whole “9pq^2” as the divisor even without parentheses. Strictly speaking, which is correct.