Yah. That is huge.
Write a polynominal that represents the area of the inner circle. Write your answer in terms of π.
Good luck.
Expand the following: pi (3-x)^2
(3-x) (3-x) = (3) (3) + (3) (-x) + (-x) (3) + (-x) (-x) = 9-3 x-3 x+x^2 = x^2-6 x+9: pi x^2-6 x+9
pi (x^2-6 x+9) = pi×9+pi (-6 x)+pi x^2: Answer: | pi×9 - 6 pi x + pi x^2
+64 
