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Class VI
Class VII
Class VIII
Class IX
Class X
CBSE Grade VII - Algebraic Expressions
Question
1
1.
Which of the following terms can be subtracted from
(
−
3
f
2
g
2
e
)
?
4
e
f
g
2
(
−
2
e
2
f
2
g
)
(
−
4
e
2
f
g
2
)
8
e
f
2
g
2
(
−
6
e
f
g
)
Question
2
2.
The value of
(
7
z
2
−
2
z
−
9
)
+
(
9
z
2
−
7
z
−
9
)
is
(
17
z
2
−
9
z
−
18
)
(
19
z
2
−
9
z
−
18
)
(
15
z
2
−
9
z
−
18
)
(
16
z
2
−
9
z
−
18
)
(
14
z
2
−
9
z
−
18
)
Question
3
3.
The value of the polynomial
(
5
f
2
−
9
f
−
8
)
at
f
=
(-4)
is
109
107
111
105
108
Question
4
4.
The value of
3
h
3
i
3
j
3
+
(
−
5
h
3
i
3
j
3
)
+
2
h
3
i
3
j
3
+
(
−
5
h
3
i
3
j
3
)
is
(
−
5
h
3
i
3
j
3
)
(
−
4
h
3
i
3
j
3
)
(
−
8
h
3
i
3
j
3
)
(
−
6
h
3
i
3
j
3
)
(
−
2
h
3
i
3
j
3
)
Question
5
5.
Which of the following is an irreducible factor of
2
x
4
y
z
2
?
x
z
2
x
4
y
2
z
2
x
x
4
y
y
2
z
Question
6
6.
The value of
(
8
z
5
−
z
2
+
6
z
)
+
(
−
2
z
5
+
7
z
4
+
3
z
3
)
is
(
6
z
5
+
7
z
4
+
3
z
3
−
z
2
+
6
z
)
(
4
z
5
+
7
z
4
+
3
z
3
−
z
2
+
6
z
)
(
9
z
5
+
7
z
4
+
3
z
3
−
z
2
+
6
z
)
(
7
z
5
+
7
z
4
+
3
z
3
−
z
2
+
6
z
)
(
5
z
5
+
7
z
4
+
3
z
3
−
z
2
+
6
z
)
Question
7
7.
The value of the polynomial
(
2
a
+
9
)
at
a
=
(-5)
,
b
=
2
,
c
=
2
is
-2
-3
-1
0
1
Question
8
8.
The value of
1
2
h
3
−
2
5
h
3
is
1
12
h
3
(
−
1
10
h
3
)
3
10
h
3
1
8
h
3
1
10
h
3
Question
9
9.
The value of
(
−
3
z
5
−
5
z
2
+
z
)
−
(
2
z
5
−
8
z
3
+
z
)
is
(
−
3
z
5
+
8
z
3
−
5
z
2
)
(
−
5
z
5
+
8
z
3
−
5
z
2
)
(
−
6
z
5
+
8
z
3
−
5
z
2
)
(
−
4
z
5
+
8
z
3
−
5
z
2
)
(
−
8
z
5
+
8
z
3
−
5
z
2
)
Question
10
10.
Which of the following terms can be subtracted from
(
−
9
)
?
9
u
3
(
−
3
u
4
)
6
u
(
−
6
u
2
)
(
−
3
)
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