Question

Find the nonpermissible replacement for x inthis expression.x24x – 8

Answer 1

The given expression is

`(x^2)/(4x-8)`

This expression is not defined if 4x-8=0.

`4x-8=0`

`4x=8`

`x=(8)/(4)`
`x=2`

Hence the nonpermissible replacement os x value is 2.