The answer in expanded form?
Answer: if you show us the whole picture, maybe we will be able to solve it?
Step-by-step explanation:
just retake the picture so i can see the whole thing
I hope this helps you
2a-30= 5d
d=2a-30/5
d=2a/5-6
What picture ? Did you attached it
The explicit formula of the sequence is given by a_n = -4n(n-1).
We have to find the first five terms of the sequence.
The first term:

The second term:

The third sum:

The fourth term:

The fifth term:

Thus, option D is correct.