3.

3 Practice Algebra 2 (H): Factoring

Factor completely.
Trisha.S
Name:__________________

1. 81x 2 - 4 2. 25 - a 2b2 3. 16 x 4 - 81

9 2
20 9
stab
4 29 4
2
9
12
7976
3 2 3 4
4. x + 6 xy + 9 y
2 2
5. a + 4a + 4
2
6. y - 10 y + 21y
4 3 2

2
6 19 at
i attatz iitii.itiiti
7. 1 - 9a 2 8. at2f
9 x 2 + 12 x - 4 9. x 2 y 2 - 8xy +y153yly3

LEAta fbe.ee y s es

10. b 4 - 13b 2 - 90 11. a 2b 2 + 10ab + 24 12. x 4 - 2 x3 - 35 x 2

ihtsf fbtbabth.ec t
g
I S
13. 8 x 4 - 40 x3 + 50 x 2 14. a 4 − 25a 2 + 144 15. (a + b)2 − 3(a + b) + 2

y atb
a

FEE
atb
atb 2
19. x 4 y 2 - 5 x3 y 3 + 6 x 2 y 4 20. 24a 2b2 - 14ab3 - 90b4 21. (2c − d)2 − 7(2c − d) + 10
c d
y x sxy 6p 2b 12m Tab 4562
X4X 3y X 2 a

Éf fÉ j 3at5bl 4a 9b
Solve by factoring

22. 30x 2 + 7x − 1 = 0 23. 4x 2 + 11x + 7 = 0 24. x 2 − 8x = 0

X 8 0
IT 5 ExttxtH
and
Eini
25. x 2 = 6x − 9 EE E 26. 5x 2 + 10x = −5

5 10 15 0
2
27. −3x 2 = 11x + 10
312 X X
on 0 3 2
51 2 2 11 0 11 10
2
1 3 6445
1031
XE 3 1 2 51 2
28. 4x 2 + 3 = 8x 29. 9x 2 + 16 = 24x 30. 4x 2 = 8x 5
88
9 2247716 0 712 42 0 0
52 312 19 212 1 at
T
242 3 3 4
1 312 1 413 4 259
12 1113 22 3 4
3 0
FEI
FEEEEEE.EE
EX