Respuesta :

[tex] {5}^{ - 4} [/tex]

Property:

[tex] \boxed { {x}^{ - y} = \frac{1}{ {x}^{y} } }[/tex]

Using it

[tex] \frac{1}{ {5}^{4} } [/tex]

Elevating to the 2 power

[tex] \boxed{ \frac{1}{625} }[/tex]