Can someone help me with number 7?

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 value √10 and √15 are plotted on the number line

Answer! if you don’t mind, can you explain