1. Factoring Polynomials

2. Factoring means to express it as a product

3. Example: 12a2b – 8ab2 Step 2 – Divide EACH term by the GCF
Step 1 -What is the GCF (Greatest Common Factor) ?
GCF = 4 a b
Step 2 – Divide EACH term by the GCF
1st factor
(12a2b – 8ab2)÷ 4 a b
( 3a -2b)
2nd factor
Step 3 – Check your answer by multiplying the 2 factors
does (3a – 2b)(4ab) = 12a2b - 8ab2
Step 4 – Write your answer using the 2 factors.
The factors of 12a2b-8ab2 are (3a – 2b) and (4ab)

4. Factor (5x2y2+15x3y2-10x4y) Example #2 ( y + 3xy – 2x2)
Step 1 -What is the GCF (Greatest Common Factor) ?
GCF = 5x2y
Step 2 – Divide EACH term by the GCF
(5x2y2+15x3y2-10x4y)
÷ 5x2y
1st factor
( y + 3xy – 2x2)
2nd factor
Step 3 – Check your answer by multiplying the 2 factors
does (5x2y) (y + 3xy – 2x2 ) = 5x2y2+15x3y2-10x4y
Step 4 – Write your answer using the 2 factors.
The factors of (5x2y2 +15x3y2-10x4y) are (5x2y) (y + 3xy – 2x2 )

5. Practice 
Workbook
Textbook 1