Respuesta :

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Answer:

(x-4)^2 -9

x^2+8x+7

x(x+8)+7

Step-by-step explanation:

(x+7) (x+1)

distributive property

x^2+ x+7x+7

combine like terms

x^2 +8x+ 7

Then solve each expression to find the one equivalent to x^2 + 8x+ 7

x=-7 and x+-1