Question

(A) (60 + x) (60 – x). (B) 3600y². (C) (60 – y)². (D) (60 – y) (60 + y). (E) (60 – y) (60 – y).

Answer 1

Resposta:

Letra D

Explicação passo-a-passo:

(60-y) (60+y)

60.60=3600

-y+y= -y²

=3600-y²