1.
Find the value of
c
that makes
x
2
+ 16
x
+
c
a perfect square.
A.
16
B.
8
C.
64
D.
-64
Hint
2.
Find the value of
b
that makes
x
2
+
bx
+ 36 a perfect square.
A.
12
B.
324
C.
6
D.
-12, 12
Hint
3.
Solve
x
2
– 8
x
+ 16 = 13 by taking the square root of each side.
A.
-4
B.
4
C.
-2
D.
2
Hint
4.
Solve
x
2
– 12
x
+ 34 = 0 by taking the square root of each side.
A.
B.
{6}
C.
D.
{5, 7}
Hint
5.
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
is negative
B.
any solution if
a
is negative
C.
any positive solution
D.
any negative solution
Hint