1.
Find the value of
c
that makes
x
2
+ 16
x
+
c
a perfect square.
A.
8
B.
64
C.
-64
D.
16
Hint
2.
Find the value of
b
that makes
x
2
+
bx
+ 36 a perfect square.
A.
-12, 12
B.
6
C.
12
D.
324
Hint
3.
Solve
a
2
-
a
- 20 = 0 by completing the square.
A.
-5, 4
B.
C.
D.
-4, 5
Hint
4.
When using a quadratic equation of the form
a
x
2
+
b
x
+
c
= 0 to find distances, what should always be ignored?
A.
any solution if
a
is negative
B.
any negative solution
C.
any positive solution
D.
any solution if
is negative
Hint
5.
Solve
x
2
– 16
x
– 17 = 0 by completing the square.
A.
{1, 13}
B.
{1, 17}
C.
{–1, 13}
D.
{–1, 17}
Hint