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