1.
Solve 2
z
2
+
z
- 4 = 0 by completing the square.
A.
B.
C.
-2, 1
D.
Hint
2.
Find the solutions of the equation.3(
x
+ 1)
2
– 4 = 23
A.
x
= 4 and
x
= –4
B.
x
= 2 and
x
= –4
C.
x
= 4 and
x
= –2
D.
x
= 2 and
x
= –2
Hint
3.
Find the solutions of the equation.(
x
– 2)
2
– 1 = 3
A.
x
= 0 and
x
= 4
B.
x
= 4 and
x
= –4
C.
x
= –4 and
x
= –4
D.
x
= 0 and
x
= –4
Hint
4.
Identify the perfect square trinomial.
A.
x
2
– 16
B.
x
2
– 7
x
+ 12
C.
4
x
2
+ 6
x
+ 2
D.
25
x
2
+ 10
x
+ 1
Hint
5.
Rewrite the expression as a square with a constant added or subtracted.
x
2
– 6
x
– 15
A.
(
x
– 3)
2
– 15
B.
(
x
– 3)
2
– 9
C.
(
x
– 3)
2
– 24
D.
(
x
– 3)
2
+ 9
Hint