Test:
Indices - Challenging
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Question 1:
Solve:
4
2
+
3
2
5
2
A
1
B
1
3
5
C
0
D
1
2
5
Question 2:
Solve:
(
6
3
:
2
3
)
2
A
9
B
27
C
18
D
3
Question 3:
Solve:
(
(
−
5
)
2
)
⋅
(
−
1
5
)
−
1
A
5
B
−
5
C
25
D
−
25
Question 4:
Simplify:
(
x
2
+
x
3
)
(
x
4
−
x
5
)
A
x
4
−
x
3
B
x
4
C
2
x
2
+
x
D
x
6
−
x
8
Question 5:
Simplify:
(
x
8
x
15
)
⋅
(
x
2
x
5
)
A
1
x
10
B
1
x
3
C
1
x
5
D
1
x
2
Question 6:
Solve:
25
1
2
+
16
1
2
+
9
1
2
−
36
1
2
A
9
B
6
C
2
6
D
5
Question 7:
Solve:
(
(
27
2
3
⋅
27
−
2
3
)
⋅
(
−
1
)
)
13
A
1
B
3
C
0
D
−
1
Question 8:
If
2
x
=
1024
, find
x
A
x
=
10
B
x
=
8
C
x
=
6
D
x
=
12
Question 9:
If
6
3
x
+
5
=
36
x
+
1
, find
x
A
x
=
6
B
x
=
−
3
C
x
=
1
3
D
x
=
−
6
Question 10:
If
2
2
x
−
5
−
128
x
+
1
=
0
, find
x
A
x
=
13
B
x
=
4
C
x
=
−
2
2
5
D
x
=
−
4
5
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