1.
Which value of
c
makes the trinomial
x
2
+ 16
x
+
c
a perfect square?
A.
32
B.
128
C.
256
D.
64
Hint
2.
Solve
x
2
+ 3
x
- 10 = 0 by completing the square.
A.
2, 5
B.
-5, 2
C.
2
D.
5
Hint
3.
Solve
x
2
- 4
x
+ 1 = 0 by completing the square.
A.
B.
1
C.
2
D.
Hint
4.
Solve
x
2
- 6
x
+ 10 = 0 by completing the square.
A.
3 ±
i
B.
1 ±
i
C.
-3 ±
i
D.
2, 4
Hint
5.
Solve
x
2
- 2
x
+ 1 = 18 by using the Square Root Property.
A.
and
B.
5 and –2
C.
and
D.
-5 and 2
Hint