For the first one I believe that the numbers are both odd and I am not sure about the second one sorry
We need to simplify this expression:

So, we will call this expression as:

We can write this equation like this:

So, if we simplify it, this can be written like this:
f(x) = 4 but given that the denominator can't be zero, then:

∴
Therefore:
f(x) = 4 if and only if
Step-by-step explanation:
x=102
I think it like this.
Answer:
Step-by-step explanation:
c