Respuesta :

[tex]\begin{gathered} \text{Given} \\ \log _7(343x) \end{gathered}[/tex]

Recall the product rule of logarithms

[tex]\log _b(xy)=\log _b(x)+\log _b(y)[/tex]

Apply the product rule to the given and we get

[tex]\log _7(343x)=\log _7(343)+\log _7(x)[/tex]