Respuesta :

Answer:

3p^2-7q^2-5r^2-11

Step-by-step explanation:

5p^2-4q^2-7r^2-6-2p^2-3q^2+2r^2-5
(6p^2–2r^2+5)—(-20p^2-7r^2-6)

-14p-9r-1
I’m not sure but hope it helps ;)