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log5(X + 2) + log5(X - 2) = log5(2x - 1)
Aplicando propiedades de logaritmos
log(5)[(x + 2)(x - 2)] = log(5)[2x - 1]
(x + 2)(x - 2) = 2x - 1
x^2 - 4 = 2x - 1
x^2 - 2x - 3 = 0
factorizando
(x - 3)(x + 1) = 0
x - 3 = 0 x1 = 3
x + 1 = 0 x2 = - 1