In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data:
a. (4/5)^(-4)
b. (-6y/x)^(-2)
Step 02:
properties of exponents:
a.
[tex](\frac{4}{5})^{-4}=(\frac{5}{4})^4=\frac{625}{256}[/tex]
b.
[tex](-\frac{6y}{x})^{-2}=(-\frac{x}{6y})^2=\frac{x^2}{36y^2}[/tex]
That is the full solution.
