I need help with this math question for a test

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.

What is the vertex form of f(x) = x2 + 6x + 3

Plot the intercepts to graph the equation