Guiding Question How do we add and subtract polynomials? Entry point : I have two baskets of fruit. In one basket, I have 3 apples, 5 bananas, and 7 cupcakes. In another basket I have 6 apples, 8 bananas and 2 cupcakes. How many apples, bananas and cupcakes do I have?
1. Add the following polynomials: (9y - 7x + 15a) + (-3y + 8x - 8a)