Luttrell 2012
120
Name: ______________________
Date: _____
8g – More Practice Factoring
Use the following formulas to help factor the questions below.
a
2
– b
2
= (a – b)(a + b)
a
3
– b
3
= (a – b)(a
2
+ ab + b
2
)
a
3
+ b
3
= (a + b)(a
2
– ab + b
2
)
Factor:
1. 25x
2
– 9
2. 4 – 81x
2
3. 16c
2
– 64
4. 27 – 3h
2
5. 3c
4
– 81c
6. x
4
– x
7. 5x
5
– 5000x
2
8. y
3
+ 64
9. a
4
b – ab
4
10. 4x
2
–16y
2
bonus. x
12
– y
12