Answer
False; $log_{4}(2x)^{3}=3log_{4}(2x)$
Work Step by Step
We are given that $log_{4}(2x^{3})=3log_{4}(2x)$.
According to the power rule of logarithms, we know that $log_{b}M^{p}=plog_{b}M$ (when $b$ and $M$ are positive real numbers, $b\ne1$, and $p$ is any real number).
Therefore, $log_{4}(2x)^{3}=3log_{4}(2x)$. The given statement is false.