1.
Factor
x
2
– 16.
A.
(
x
+ 4)(
x
+ 4)
B.
(
x
+ 4)(
x
– 4)
C.
(
x
– 4)(
x
– 4)
D.
(
x
+ 2)(
x
– 8)
Hint
2.
Solve
a
2
– 12
a
= -27.
A.
a
= 3
B.
a
= -27 or
a
= -15
C.
a
= 3 or
a
= 9
D.
a
= 9
Hint
3.
Find the solutions of the equation.4
y
2
– 16 = 0
A.
y
=
and
y
=
B.
y
= –2 and
y
= –2
C.
y
= 2 and
y
= –2
D.
y
=
and
y
=
Hint
4.
Rewrite the expression as a product of two binomials.
x
2
–
x
– 56
A.
(
x
– 7)(
x
– 8)
B.
(
x
+ 7)(
x
– 8)
C.
(
x
– 7)(
x
+ 8)
D.
(
x
+ 7)(
x
+ 8)
Hint
5.
Factor the quadratic expression.
x
2
+ 2
x
– 24
A.
(
x
– 6)(
x
+ 4)
B.
(
x
+ 6)(
x
+ 4)
C.
(
x
– 6)(
x
– 4)
D.
(
x
+ 6)(
x
– 4)
Hint