Warm – up #1

1. Write in standard form.

What is the classification of this polynomial by its degree?

By its number of terms?

2. What is a cubic polynomial function in standard form with zeros 3, –3, and 3?

Hw:pg 301 # 12-15, 21, 23, 39-49 ODD (skip 45)

Warm – up #1 Solutions

1. Write in standard form. What is the classification of this polynomial by its degree? By its number of terms?

Quintic trinomial

Warm – up #1 Solutions

2. What is a cubic polynomial function in standard form with zeros 3, –3, and 3?

x = 3 x = –3 x = 3

x – 3 = 0 x + 3 = 0 x – 3 = 0

(x – 3)(x + 3)(x – 3) = 0

Homework Log

Fri

11/20

Lesson 5 – 3

Learning Objective: To solve polynomial equations

Hw:pg 301 # 12-15, 21, 23, 39-49 ODD (skip 45)

11/20/15 Lesson 5 – 3 Solving Polynomial

EquationsAlgebra II

Learning Objective

To solve polynomial equations by factoring or quadratic formula

Solve1.

x(2x + 1)(x – 3) = 0

x = 0, 3,

–6

–51–6

Solve2.

x = 0

Solve3.

(x – 1)(x + 1)=0

x – 1 = 0 x + 1 = 0

x = 1, –1

=0 NOT A DIFF OF SQURES!

x =

Solve4.

x = 0 (multiplicity of 3)

x = 2 (multiplicity of 1)

x = 3 (multiplicity of 1)

6

–5–3–2

Solve5.

x – 2 =0 x + 2 = 0

x = 2 x = -2

x =

–4

–31–4

Solve6.

Diff of cubes FORMULA

(x – 1)(

x – 1 = 0

x = 1

x 1

Solve7.

x + 2 = 0 x – 2 = 0 =0

x = -2 x = 2

x =

4

Solve8.

x(x + 4)(x – 2) = 0

Solve9.

Diff of cubes

(x – 2)(

x – 2 = 0

x = 2

x 2

Ticket Out the Door

Find all solutions to

Assignment:

Pg: 301 # 12-15, 21, 23, 39-49 ODD (skip 45)