Question

Seja a função quadrática f(x) = x2 − 6x + 5, as raízes são:

(a) (1, 0) e (−5, 0)
(b) (−1, 0) e (−6, 0)
(c) (1, 0) e (5, 0)

Answer 1

x² - 6x + 5

(x -1). (x-5)

x'=1 x"=5. ==> c) (1, 0) e (5, 0)