We have two ways to correctly write this expression:
Way 1:
(6n-3) / ((n + 3) (n + 3))
In this case, the simplified expression is:
(3 (2n-1)) / ((n + 3) ^ 2)
Way 2:
(6n-3) / ((n + 3) / (n + 3))
Rewriting we have:
((6n-3) (n + 3)) / (n + 3)
Canceling similar terms we have:
6n-3
The simplified expression is:
3 (2n-1)