Answer:
For rational expression will be undefined.
Step-by-step explanation:
Given function is
We need to find for what value of variable this rational expression will be undefined.
The rational expression will be undefined if the denominator of the expression will become zero.
So, let us plug denominator equal to zero.
Hence, this rational expression will be undefined if the value of variable .
Answer: the answer is D
Step-by-step explanation:
To find the answer you have to change both of the denominators to be the same and then you can add across