/ (1 + n)*(-5 + n)\ lim |3 + ----------------| n->1+| 2 | \ n /
Limit(3 + ((1 + n)*(-5 + n))/n^2, n, 1)
/ (1 + n)*(-5 + n)\ lim |3 + ----------------| n->1+| 2 | \ n /
-5
= -5
/ (1 + n)*(-5 + n)\ lim |3 + ----------------| n->1-| 2 | \ n /
-5
= -5
= -5