1.
Solve
x
2
–
x
– 72 = 0.
A.
x
= 8 or
x
= -9
B.
x
= -8 or
x
= 9
C.
x
= -8
D.
x
= 9
Hint
2.
Factor
x
2
+ 6
x
– 7.
A.
(
x
– 3)(
x
– 3)
B.
(
x
– 1)(
x
+ 7)
C.
(
x
+ 1)(
x
– 7)
D.
(
x
+ 3)(
x
+ 3)
Hint
3.
Factor
x
2
– 4
x
– 32.
A.
(
x
+ 8)(
x
– 4)
B.
(
x
– 16)(
x
+ 2)
C.
(
x
+16)(
x
– 2)
D.
(
x
– 8)(
x
+ 4)
Hint
4.
When factoring quadratic trinomials of the form
x
2
+
b
x
+
c
, what is true about
m
and
n
if the factored form is (
x
+ m)(
x
+
n
)?
A.
The sum of
b
and
c
is equal to the product of m and
n
.
B.
Their sum is equal to
b
, and their product is equal to
c
.
C.
Their sum is equal to
c
, and their product is equal to
b
.
D.
The product of
b
and
c
is equal to the sum of m and
n
.
Hint
5.
What are two consecutive numbers whose product is 132?
A.
10 and 11
B.
6 and 22
C.
12 and 13
D.
11 and 12
Hint