Answer:
-2
Step-by-step explanation:
I think this was the question you were talking about.
Answer: D
Step-by-step explanation: if you write it out it will be the exact same thing as D so it will be d
Answer: 
Step-by-step explanation:
1. You have the following expression:

3. The denominatoir cannot be zero, so, you must find its roots:

Factorizing it, you obtain:

Then:

4. Therefore, the values that are discontinuity of
are:
