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Respuesta :

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12