1.
Find the value of
b
that makes
x
2
+
bx
+ 36 a perfect square.
A.
6
B.
324
C.
-12, 12
D.
12
Hint
2.
Solve 2
z
2
+
z
- 4 = 0 by completing the square.
A.
B.
C.
-2, 1
D.
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.
{5, 7}
B.
C.
{6}
D.
Hint
5.
Solve 0.25
x
2
– 7
x
– 15 = 0.
A.
{3, 15}
B.
{–2, 30}
C.
{4, 30}
D.
{–5, 3}
Hint