Respuesta :

Answer:

(x + y)(a + b - c).

Step-by-step explanation:

ax + ay + bx + by - cx - cy    

= ax + bx - cx + ay + by - cy

=  x(a + b - c) + y(a + b - c)

(a + b - c) is common to both parts, so the factors are:

(x + y)(a + b - c).

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