Answer:
D.
Step-by-step explanation:
2=-2,3=-3
2²=-2²,3²=3²
Answer:

Step-by-step explanation:
To find the area of the inner circle, we need to find its radius. Here, we can write the radius as 4 - x. Now, we can use the formula
:
A =
* 
We can expand the square:
A = 
Thus, the polynomial is
.
Hope this helps!
Answer:
1. -9xy
2. 6ab
3.-8mn
4. 17nx
Step-by-step explanation: