We have

so this is indeed a difference of squares. Factorizing would give

making the answer D.
We can further factor the first term here and write

but that's clearly out of the scope of this question.
Answer:
Friday, Feb. 8, at 3:16 p.m.
Step-by-step explanation:Just took it :3
Answer:
I believe it would be 18.568 or round up to 18
Step-by-step explanation: