Question

log3 (x + 1) + log3 (x-1) = log 3 (8/3) + log3 X

Answer 1

Respuesta:

log3 (x + 1) + log3 (x-1) = log 3 (8/3) + log3 X

(x + 1) (x - 1) = $\frac{8}{3}$×

x = 3, x = -$\frac{1}{3}$

x = 3 es verdadero, x = -$\frac{1}{3}$ es falso.

La solución es

x = 3