1.
Which value of
c
makes the trinomial
x
2
+ 16
x
+
c
a perfect square?
A.
128
B.
32
C.
64
D.
256
Hint
2.
Solve
x
2
+ 3
x
- 10 = 0 by completing the square.
A.
2, 5
B.
-5, 2
C.
5
D.
2
Hint
3.
Solve
x
2
- 4
x
+ 1 = 0 by completing the square.
A.
1
B.
C.
2
D.
Hint
4.
Solve
x
2
- 6
x
+ 10 = 0 by completing the square.
A.
3 ±
i
B.
2, 4
C.
-3 ±
i
D.
1 ±
i
Hint
5.
What must be done to the quadratic expression
a
x
2
+
b
x
in order to complete the square?
A.
square
b
and add to original
B.
find one half of
b
, square this result, and add to original
C.
find one fourth of
b
and add to original
D.
square
b
, then find one half of the result, and add to original.
Hint