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5.3 Polynomials and Polynomial Functions

Coefficient: the numerical factor of each term.

Constant: the term without a variable.

Term: a number or a product of a number and variables raised

to a power.

Polynomial: a finite sum of terms of the form axn, where a is a

real number and n is a whole number.

Slide 2

Definitions

Monomial: a polynomial with exactly one term.

Binomial: a polynomial with exactly two terms.

Trinomial: a polynomial with exactly three terms.

5.3 Polynomials and Polynomial Functions

Slide 3

Definitions

The Degree of a Term with one variable is the exponent on

the variable.

The Degree of a Term with more than one variable is the sum of the exponents on the variables.

The Degree of a Polynomial is the greatest degree of the terms of the polynomial variables.

5.3 Polynomials and Polynomial Functions

Slide 4

Identify the degrees of each term and the degree of the polynomial.

5.3 Polynomials and Polynomial Functions

4 𝑎 2 𝑏 4 +3 𝑎 3 𝑏 5 −9 𝑏 4 +4

8

8

4 𝑥 5 𝑦 4 +5 𝑥 4 𝑦 6 −6 𝑥 3 𝑦 3 +2𝑥𝑦

10

10

Slide 5

Practice Problems

Evaluate each polynomial function

5.3 Polynomials and Polynomial Functions

Slide 6

5.4 Polynomials and Polynomial Functions

Multiplying Monomials by Monomials

Examples:

Slide 7

Multiplying Monomials by Polynomials

Examples:

5.4 Polynomials and Polynomial Functions

Multiplication

Slide 8

Multiplying Two Polynomials

Examples:

5.4 Polynomials and Polynomial Functions

Multiplication

Slide 9

5.4 Multiplying Polynomials

Multiplying Two Binomials using FOIL

First terms

Last terms

Inner terms

Outer terms

Slide 10

Multiplying Two Binomials using FOIL

First terms

Last terms

Inner terms

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