Can someone explain the associative property, and distributive property to me? i understand the commutative property and identitive property but i'm having trouble with the other two. explain in the simplest way possible, . you : )

The associative property is basically just when you move the parentheses in a problem. For example: (a+b)+c = a+(b+c).

Distributive property is a little more complicated, its better if i show you.

a(b+c) = ab+ac

so a times b plus c is the same as a times b plus a times c.

Hope i helped:)

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.