Question

Find the nonpermissible replacement for N in the following expression : -8/5n

Answer 1

We are given expression

$\frac{-8}{5n}$

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

$5n=0$

Divide both sides by 5

$\frac{5n}{5} =\frac{0}{5}$

so, we get

$n=0$

So, the non-permissible replacement for n in this expression is 0.........Answer