We are given expression
[tex]\frac{-8}{5n}[/tex]
we know that
this is rational expression
And any rational expression is undefined when it's denominator =0
so, for finding non-permissible values of n , we set denominator =0
and then we can solve for n
denominator is 5n
[tex]5n=0[/tex]
Divide both sides by 5
[tex]\frac{5n}{5} =\frac{0}{5}[/tex]
so, we get
[tex]n=0[/tex]
So, the non-permissible replacement for n in this expression is 0.........Answer
