The idea is for students to work on these same problems two days in a row. Today, they can just use whatever method they prefer, and make sure they master it and can fully explain how it works.
I name each method on the board:
2) Product of Linear Factors
3) Vertex Form
Even though we have never really explained these methods, students are usually able to choose the name of the method they are using. I ask them to make sure that they can identify their preferred method and explain how it works. I tell them that tomorrow they will be responsible for teaching their method to another person, and will need to master another method to solve each of the 3 problems.