Bell Quiz

9.1 Adding and Subtracting Polynomials You will review what polynomials are You will learn how to add and subtract polynomials Page 31 in the workbook

Polynomial: An algebraic expression made up of terms. This polynomial has three terms Terms are separated by plusses (+) and minuses (-)

How many terms are in each polynomial? 2 terms 4 terms

Descending Order By convention we write our polynomials in descending order; that is, from the highest exponent to the lowest exponent. Rewrite the polynomial in descending order highest lowest

Different kinds of polynomials What does “poly” mean? – So a polynomial has MANY terms What number does “mono” represent? – So a monomial has ONE term What number does “bi” represent? – So a binomial has TWO terms What number does “tri” represent? – So a trinomial has THREE terms

The DEGREE of a polynomial The highest number of variables in one term. Has a degree of 2 Has a degree of 3

Tell the type of polynomial and the degree Monomial Degree of 5 Binomial Degree of 1 Trinomial Degree of 4

ADDING polynomials Look for like terms What like terms do you see? 7x –2y

ADDING polynomials Look for like terms Combine the like terms and simplify: 4x 2 –x–16

ADDING polynomials Look for like terms Combine the like terms and simplify: 3x 3 +4x+4– 6x 2

SUBTRACTING polynomials Distribute the negative; Then look for like terms

SUBTRACTING polynomials Distribute the negative; Then look for like terms

SUBTRACTING polynomials Distribute the negative; Then look for like terms

Assignment #17: Pg 557: 4, 7, 8, 9, all, all, all, 54