Respuesta :

ShomiliPal07

Answer:

Option C - (-28p⁵-21p⁴+7p³)

Step-by-step explanation:

=> -7p³×4p²= -28p⁵---- 1

=> -7p³×3p= -21p⁴------ 2

=> -7p× (-1)= 7p³---- 3p

Add 1+2+3

=> (-28p⁵-21p⁴+7p³)

Hope this helps you.

Answer:

-28p^5 -21p^4 + 7p^3

Step-by-step explanation:

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