Question

(A) ( – ) × ( + ).
(B) ( – ) × ( + )².
(C) ( – )² × ( + ).
(D) ( – ) × ( – ).
(E) ( + )( + ).

Answer 1

Resposta:

Letra B

Explicação passo-a-passo:

Vamos lá!

$(x^{2} -y^{2}) =(x-y).(x+y)\\\\x^{2} +2xy+y^{2} =(x+y)^{2}$