Respuesta :

Answer:

I am not sure but I try

Step-by-step explanation:

1 p²-p-16c²-4c

p(p -1) -4 c(4c+1)

(p- 4c) (p- 1) (4c+1)

2. x²-7x+7y-y²

x(x- 7) +y(7-y)

(x+y)(x- 7) (7 - y)

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