Question

For what value of x is the rational expression below undefined x-4/4 x

Answer 1

`x=0`

Explanation:

We have been an rational expression
`(x-4)/(4x)`. We are asked to find the value of x for which our given expression is undefined.

We know that a rational expression is undefined when its denominator becomes zero. So find such value of x for our given expression, we will equate denominator with 0 and solve for c as:

`4x=0`

`(4x)/(4)=(0)/(4)`

`x=0`

Therefore, when x is equal to 0 our given expression will be undefined.