Question

Ao fatorar 49x² – 25, encontramos: *
(a) (7x+5).(7x+5)
(b) (7x–5).(7x–5)
(c) (7x+5).(7x–5)
(d) (7x–5)²

Answer 1

Resposta:

49x² – 25

(7x)² - 5²

(7x - 5).(7x + 5)

letra (C)

bons estudos!