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
x
2
- 4
x
+ 1 = 0 by completing the square.
A.
1, 3
B.
C.
D.
Hint
3.
Solve
a
2
-
a
- 20 = 0 by completing the square.
A.
B.
-4, 5
C.
-5, 4
D.
Hint
4.
Solve the equation by backtracking.
A.
y
= 3
B.
y
=
C.
y
=
D.
y
= 1
Hint
5.
Solve the equation by backtracking.
A.
p
= –10
B.
p
= 12
C.
p
= –12
D.
p
= 12 and
p
= –12
Hint
6.
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
7.
Solve the equation.
x
2
– 2
x
– 3 = 0
A.
x
= –5 and
x
= 0
B.
x
= 5 and
x
= 0
C.
x
= 3 and
x
= –1
D.
x
= 2 and
x
= –1
Hint
8.
Solve the equation.6
x
2
– 12
x
+ 3 = 0
A.
x
= –0.29 and
x
= –1.71
B.
x
= 0.29 and
x
= 1.71
C.
x
= 0.29 and
x
= –1.71
D.
x
= –0.29 and
x
= 1.71
Hint