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Class VI
Class VII
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Class X
ICSE Grade VIII - Exponents
Question
1
1.
(
j
21
j
)
5
=
j
21
j
j
105
j
5
j
105
j
j
(
21
j
+
5
)
Question
2
2.
If
(
9
2
)
1440
=
(
9
288
)
j
, find
j
10
13
7
9
11
Question
3
3.
Simplify the expression
-7
(
5
3
)
✕
-7
(
8
3
)
✕
-7
(
8
7
)
-6
(
320
63
)
-7
(
46
9
)
-7
(
106
21
)
-7
(
320
63
)
-8
(
320
63
)
Question
4
4.
-1
4
=
undefined
0
-1
∞
1
Question
5
5.
−
7
x
(-2)
.
−
4
x
4
.
−
8
x
(-3)
=
−
224
x
(-1)
−
224
x
24
−
19
x
24
−
x
(-224)
−
19
x
(-1)
Question
6
6.
If
1296
✕
6
p
=
6
9
, find
p
6
5
3
7
4
Question
7
7.
3
√
27
64
=
5
4
3
4
1
4
1
2
3
2
Question
8
8.
Simplify the expression
-3
(
9
2
)
✕
-3
(
9
2
)
-5
(
9
2
)
-6
(
9
2
)
-6
(
7
2
)
-6
(
11
2
)
-7
(
9
2
)
Question
9
9.
i
3
i
19
=
1
i
(-16)
1
i
57
1
i
16
1
i
22
i
16
Question
10
10.
Simplify the expression
(
-8
3
)
(-9)
✕
(
-8
3
)
(-9)
✕
(
-8
3
)
(-9)
(-9)
-7
(-6)
-8
(-9)
-8
(-11)
-8
(-9)
-9
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