Given
[tex]3logy-2logx-4logz[/tex]Solution
[tex]3\log _{10}\left(y\right)-2\log _{10}\left(x\right)-4\log _{10}\left(z\right)[/tex]Apply log rule
[tex]\begin{gathered} =\log _{10}\left(\frac{y^3}{x^2}\right)-\log _{10}\left(z^4\right) \\ \\ \\ =\log _{10}\left(\frac{\frac{y^3}{x^2}}{z^4}\right) \\ \end{gathered}[/tex]Simplify
[tex]=\log _{10}\left(\frac{y^3}{x^2z^4}\right)[/tex]The final answer[tex]\log _{10}\left(\frac{y^3}{x^2z^4}\right)[/tex]