Question #2 What is the difference?

B  

Step-by-step explanation:

In order to get the same denominator, we need to multiply the second fraction by (b+2) in the numerator and denominator.

We will end up in something like this :

I just timed the second fraction by b+ 2 and then i added them together.

Therefore, we will get

now factoring the numerator we will end like this

we will then end up with the answer.

Hope this helps.

i believe the answer is c.