Respuesta :

katieearle17

Answer:

E=X^2-2x-48

Step-by-step explanation:

E=(x-4)(x+12)-2x-8x

(distribute parenthesis)

E=X^2+12x-4x-48-2x-8x

(add like terms, the bold ones)

E=X^2-2x-48

i hope that's right :)

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