Question

Find the nonpermissible replacement for N in the following expression :

-8/5n

Answer 1

We are given expression

`(-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

`(5n)/(5) =(0)/(5)`

so, we get

`n=0`

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