Question

(a+b+c)(a-b+c)(a+b-c)(b+c-a); para a = 1, b = 2, c =3

Answer 1

(1+2+3)(1–2+3)(1+2–3)(2+3–1)
(6)(2)(4)
48

Answer 2

(1+2+3) (1-2+3) (1+2-3) (2+3-1)=
(6) (2) (0) (4)=
0    

espero que te sirva