## Algebra and Trigonometry 10th Edition

$\log_7(z-2)^{\frac{2}{3}}=\log_7\sqrt[3] {(z-2)^2}$
Use the Power Property: $\frac{2}{3}\log_7(z-2)=\log_7(z-2)^{\frac{2}{3}}=\log_7\sqrt[3] {(z-2)^2}$