Respuesta :

flibety
this expression would simplify down to [tex] \frac{-18}{m^5n} [/tex]
-9m^-2 * 2m^-3  =  -18m^-5
n^5 * n^-6 =  n^-1

combining these we get:-

-18m^-5 n^-1
which can also be written as
-18 / m^5 n

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