By definition we have to:
A set has under an operation if performance of that operation on set members always produces a member of the same set; in this case we also say that the set is closed under the operation.
For this case we have the following polynomials:

Multiplying we have:

The product of two polynomials is also a polynomial.
Answer:
d
is a polynomial
Answer:
2
Step-by-step explanation:
skskskskskskkskskskskskskksksks
I got three numbers ...
798, 1726, & 2654
I only have the answer for 1, but !
1. The area of a parallelogram is base times height. Since the area of that rectangle is twice the area of the circle, then the area of the circle is half the base times the height. It will be half of 2πr· r. The area of the circle will be πr2
Answer:
36
Step-by-step explanation:
9 cookies , 9*4 ((4 because of the 1/4 ))9*4=36