1.
Solve
x
2
–
x
– 72 = 0.
A.
x
= 8 or
x
= -9
B.
x
= -8
C.
x
= 9
D.
x
= -8 or
x
= 9
Hint
2.
Factor
x
2
+ 6
x
– 7.
A.
(
x
– 1)(
x
+ 7)
B.
(
x
+ 3)(
x
+ 3)
C.
(
x
– 3)(
x
– 3)
D.
(
x
+ 1)(
x
– 7)
Hint
3.
Joanne has a garden that is 9 feet long by 6 feet wide. She wants to increase the dimensions of the garden by the same amount, and have the area of the new garden be 5 times the area of the present garden. What should the new dimensions be?
A.
length = 24 ft
width = 30 ft
B.
length = 30 ft
width = 24ft
C.
length = 15 ft
width = 18 ft
D.
length = 18 ft
wideth = 15ft
Hint
4.
Suppose the area of a square is
x
2
– 10
x
+ 25. What is the perimeter of the square?
A.
2
x
B.
4
x
C.
4
x
– 20
D.
2
x
– 10
Hint
5.
What are two consecutive numbers whose product is 132?
A.
12 and 13
B.
10 and 11
C.
11 and 12
D.
6 and 22
Hint