The second term of the expansion is
.
Solution:
Given expression:

To find the second term of the expansion.

Using Binomial theorem,

Here, a = a and b = –b

Substitute i = 0, we get

Substitute i = 1, we get

Substitute i = 2, we get

Substitute i = 3, we get

Substitute i = 4, we get

Therefore,



Hence the second term of the expansion is
.
I think it would be D that’s what I think
The formula is
I=prt
I amount earned?
P 2500
R interest rate 0.085
T time 4years
I=2,500×0.085×4
I=850
The answer to this question is (9.5)...
There is no option saying 9.5?