Respuesta :

Answer:

X^2+xy-x+y^2-y-12

Step-by-step explanation:

I think i did it right but if not comment back and i'll try again.

yarimarpolancop6xwnu
(X+y+3)(x+y-4)
X^2+xy-4x+xy y^23x+3y-12
X^2+2xy-x+y^2-y-12

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