Question

Defina as raízes das seguintes funções polino-miais
c) f(x) = (x – 5) · x · (x + 2)
d) f(x) = (1 – x) ∙ (x + 1) ∙ (x – 4) ∙ (3 + x)

Answer 1

c)

x - 5 = 0

---> x = 5.

---> x = 0.

x - 2 = 0

x = 2.

S = {0, 2, 5}.

d)

1 - x = 0

1 = x

x = 1.

x + 1 = 0

x = -1.

x - 4 = 0

x = 4.

3 + x = 0

x = -3.

S = {-3, -1, 1, 4}.

Att, Felipemlvr.