Question

4)Calcule:

(a + b + c)⋅(a − b + c)⋅(a − b − c), para a = 2 , b = −1 e c= 3​

Answer 1

Resposta:

(a + b + c) ⋅ (a − b + c) ⋅ (a − b − c)

(2 + (– 1) + 3) . (2 – (– 1) + 3) . (2 – (– 1) – (+ 3)

(2 – 1 + 3) . (2 + 1 + 3) . (2 + 1 – 3)

4 . 6 = 24.

Espero ter ajudado ;)