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Class VI
Class VII
Class VIII
Class IX
Class X
CBSE Grade VII - Algebraic Expressions
Question
1
1.
The value of
1
2
w
3
−
1
2
w
3
is
(
−
1
)
1
(
−
3
)
0
3
Question
2
2.
Which of the following terms can be subtracted from
k
2
l
2
j
?
(
−
8
j
k
l
2
)
(
−
9
j
2
k
2
l
2
)
8
j
k
2
l
2
(
−
2
j
2
k
l
)
(
−
8
j
2
k
l
2
)
Question
3
3.
The value of the polynomial
(
−
5
q
r
2
s
2
−
9
r
2
s
)
at
q
=
3
,
r
=
5
,
s
=
(-1)
is
-150
-151
-147
-149
-153
Question
4
4.
Which of the following algebraic expressions is a trinomial?
(
−
9
u
3
w
3
−
7
u
v
3
w
3
+
6
v
2
−
4
w
2
)
(
8
u
3
w
+
2
w
+
3
)
(
5
u
v
3
w
−
2
v
2
w
+
9
v
w
3
+
6
w
3
)
(
−
9
u
v
w
2
)
(
−
u
2
v
2
+
5
w
2
)
Question
5
5.
The value of
(
−
4
m
)
+
(
−
9
m
)
+
6
m
+
(
−
8
m
)
is
(
−
17
m
)
(
−
12
m
)
(
−
14
m
)
(
−
16
m
)
(
−
15
m
)
Question
6
6.
The value of
5
c
2
d
2
e
2
−
7
c
2
d
2
e
2
−
(
−
c
2
d
2
e
2
)
−
4
c
2
d
2
e
2
is
(
−
6
c
2
d
2
e
2
)
(
−
2
c
2
d
2
e
2
)
(
−
4
c
2
d
2
e
2
)
(
−
7
c
2
d
2
e
2
)
(
−
5
c
2
d
2
e
2
)
Question
7
7.
The value of
(
6
k
2
l
2
−
8
k
2
l
−
k
l
2
+
1
)
−
(
−
8
k
2
−
3
k
l
2
+
10
l
2
−
7
l
)
is
(
6
k
2
l
2
−
8
k
2
l
+
8
k
2
+
2
k
l
2
−
10
l
2
+
7
l
+
1
)
(
7
k
2
l
2
−
8
k
2
l
+
8
k
2
+
2
k
l
2
−
10
l
2
+
7
l
+
1
)
(
6
k
2
l
2
−
6
k
2
l
+
8
k
2
+
2
k
l
2
−
10
l
2
+
7
l
+
1
)
(
5
k
2
l
2
−
8
k
2
l
+
8
k
2
+
2
k
l
2
−
10
l
2
+
7
l
+
1
)
(
6
k
2
l
2
−
11
k
2
l
+
8
k
2
+
2
k
l
2
−
10
l
2
+
7
l
+
1
)
Question
8
8.
The value of
(
−
7
v
+
1
)
−
(
−
6
v
−
5
)
is
(
−
2
v
+
6
)
6
(
−
4
v
+
6
)
(
2
v
+
6
)
(
−
v
+
6
)
Question
9
9.
The value of
1
2
p
4
+
1
5
p
4
+
3
4
p
4
+
1
4
p
4
is
17
10
p
4
3
2
p
4
19
10
p
4
19
12
p
4
15
8
p
4
Question
10
10.
The value of
1
2
f
2
g
2
+
4
5
f
2
g
2
+
1
2
f
2
g
2
+
3
4
f
2
g
2
is
5
2
f
2
g
2
51
20
f
2
g
2
49
20
f
2
g
2
53
20
f
2
g
2
47
18
f
2
g
2
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