I'm sorry if I'm wrong but I think the answer is -31
No wait nvm maybe not I'm so sorry I can't remember
ANSWER

EXPLANATION
The given expression is

The greatest common factor is 2.
We factor 2 to obtain:

The expression in the parenthesis is prime.
This means that the quadratic expression in the parenthesis cannot be factored.
Hence the completely factored form is:

Answer:
1) 1
3) -4
Step-by-step explanation:
I haven't learned b-value yet, so sorry~.