Respuesta :

Answers: (n+6)+(-19n-2)= 18n+4

Step by Step:
3n2-5n+6
6n-5n+6
n+6

-8n2-3n-2
-16n-3n-2
-19n-2

Answer:

C

-5n^2-8n+4

Step-by-step explanation: