1. Warm-up 6-5 1) 2)

2. Lesson 6-5: Synthetic Division
Objective:
Students will use synthetic division to find quotients

3. Why Synthetic Division Less writing Uses addition
Setting Up
Divisor must be of the form: x – a
Use only “a” and coefficients of dividend
Write in “zero terms”
x – 2: a = 2
x + 3: a = -3

4. Steps
Bring down
Multiply diagonally
Add
Remainder = last addition
Answer
Numbers at bottom are coefficients
Start with 1 degree less than dividend
REPEAT

5. Example 1: (2x3 – 7x2 – 11x – 20) (x – 5)

6. Example 2: (2x4 – 30x2 – 2x – 1) (x – 4)

7. Example 3: (x5 + x4 + x3 + x2 + x + 1) (x + 1)
HW 68