Luttrell 2012
129
Chapter 8 Test, continued
8. Factor what you can and then reduce each fraction:
A. (6a - 12) ÷ 3
B. (4a
2
+ 12a - 16) ÷ (a + 4)
C. (x
2
+ 7x + 12) ÷ (x + 3)
9. Solve by factoring:
A. a
2
+ 5a – 14 = 0
B. 121 + 22m + m
2
= 0
10. Solve by the quadratic formula:
A. 3a
2
+ 2a – 5 = 0
B. 12 + 7m + m
2
= 0
11. Graph y = 2x
2
– 5x + 3.
12. Use the discriminant to determine how many x-intercepts the graph y = 2x
2
– 5x – 3.
Bonus of three points: (x
2
+ x - 2) ÷ (x
2
- 4x - 12)
⋅
(x
2
- 5x - 6) ÷ (x
2
- 1).
10
5
5
5
5
0