# Prepare a Presentation

## Work Time

# Prepare a Presentation

- Explain how you wrote your two different expressions for one of your trains.
- Describe your methods for finding the simplest form of the expression for the train you chose to present.

# Challenge Problem

- Compare the expressions 5
*a*+ 0*d*and 5*a*. Are they equivalent? Justify your thinking. - Compare the expressions 5
*a*+*d*and 5*a*. Are they equivalent? Justify your thinking.