Respuesta :

Answer:

Step-by-step explanation:

To write (-10p^4+9)(9-10p^4)

Open the brackets

-90p^4+10p^8+81-90p^4

Collect like terms

-180p^4+10p^8+81

10p^8-180p^4+81

Answer: ?

Step-by-step explanation:

I dunno.