1.
Factor 2
r
3
+ 8
r
2
- 10
r
completely.
A.
2
r
(
r
- 1)(
r
+ 5)
B.
2
r
(
r
2
+ 4
r
- 5)
C.
(2
r
- 1)(
r
+ 5)
D.
2(
r
3
+ 4
r
2
- 5
r
)
Hint
2.
Factor
m
3
- 4
m
2
+ 6
m
- 24.
A.
(
m
+ 4)(
m
2
- 6)
B.
(
m
- 4)(
m
2
+ 6)
C.
m
(
m
2
- 4
m
+ 6) - 24
D.
m
2
(
m
- 4) + 6
m
- 24
Hint
3.
Which of the following is prime?
A.
5
xy
>
2
+ 10y
B.
7
x
2
–
y
2
C.
3
x
2
– 6
y
D.
3
xy
+ 13
x
2
Hint
4.
Factor 4
x
2
– 49.
A.
(2
x
+ 7)(2
x
– 7)
B.
C.
D.
Hint
5.
Simplify:
if
A.
B.
Cannot be simplified further.
C.
D.
Hint