May 2021 1 58 Report
A equação log5 (x + 2) + log5 (x – 2) = 3 admite:?

a)uma única raiz e negativa.

b)duas raízes irracionais.

c)uma raiz par e outra ímpar.

d)duas raízes opostas.

e)duas raízes pares.

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