Okay, here we have this:
Considering the provided expression, we are going to get the requested result, so we obtain the following:
[tex]\begin{gathered} \mleft(\frac{8^45^3}{8^5}\mright)^2 \\ =(\frac{5^3}{8^{5-4}})^2 \\ =\mleft(\frac{5^3}{8}\mright)^2 \\ =\frac{5^6}{8^2} \end{gathered}[/tex]
