1. Adding & Subtracting Polynomials (1.2.1) September 11th, 2015

2. Definitions Monomial: An expression with one term, consisting of a number, a variable, or the product of a number and variable(s), i.e., 5xy. Polynomial: A sum of monomials, i.e., 7x 2 +5xy+(-2x)+3y+(-1). Like Terms: Terms that contain the same variables raised to the same power, i.e., 2x 3 y and 9x 3 y.

3. Ex. 1: Find the sum of each. a) b) c)

4. What is the relationship between addition of polynomials and subtraction of polynomials?

5. Ex. 2: Find the sum or difference for each. a) b) c) d) e)