1.
Factor
x
2
+ 5
x
+ 6.
A.
(
x
+ 1)(
x
+ 5)
B.
prime
C.
(
x
+ 2)(
x
+ 3)
D.
(
x
+ 1)(
x
+ 6)
Hint
2.
Solve
x
2
–
x
– 72 = 0.
A.
x
= 8 or
x
= -9
B.
x
= 9
C.
x
= -8 or
x
= 9
D.
x
= -8
Hint
3.
Factor
x
2
– 7
x
+ 12.
A.
(
x
+ 6)(
x
+ 2)
B.
(
x
+ 3)(
x
+ 4)
C.
(
x
– 6)(
x
– 2)
D.
(
x
– 3)(
x
– 4)
Hint
4.
Factor
x
2
– 4
x
– 32.
A.
(
x
+16)(
x
– 2)
B.
(
x
– 16)(
x
+ 2)
C.
(
x
+ 8)(
x
– 4)
D.
(
x
– 8)(
x
+ 4)
Hint
5.
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 product of
b
and
c
is equal to the sum of m and
n
.
B.
The sum of
b
and
c
is equal to the product of m and
n
.
C.
Their sum is equal to
b
, and their product is equal to
c
.
D.
Their sum is equal to
c
, and their product is equal to
b
.
Hint