Respuesta :

Answer:

Step-by-step explanation:

(x+4)2-3(x+4)-3=0

2x+8-3x-12-3=0

-1x-4-3=0

-1x-7=0

-1x=7

x=7/-1

x=-7

Answer:

u= x + 4

Step-by-step explanation:

I just did the as. and quiz

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