Answer:
Step-by-step explanation:
is an arithmetic progression with ratio=4
a1=5
a2=a1+4=5+4=9
a3=a2+4=9+4=13
...............
a n+1 = a n+4
(13+6x²+11x+6)÷(x+2)
(6x²+11x+19)÷(x+2)
15
D)
