With these questions, i am confused!

Recall the definition of a polynomial expression. find two polynomial expressions whose quotient, when simplified,is. use that division problem to determine whether polynomials are closed under division. then describe how theother three operations-addition, subtraction, and multiplication-are different from division of polynomials.

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0