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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
3
w
2
x
2
y
2
−
4
5
w
2
x
2
y
2
−
2
3
w
2
x
2
y
2
−
1
2
w
2
x
2
y
2
is
(
−
17
10
w
2
x
2
y
2
)
(
−
47
28
w
2
x
2
y
2
)
(
−
47
30
w
2
x
2
y
2
)
(
−
49
30
w
2
x
2
y
2
)
(
−
51
32
w
2
x
2
y
2
)
Question
2
2.
The sum of the expressions
(
−
3
s
+
1
)
,
(
−
7
s
−
4
)
,
(
8
s
−
3
)
,
(
6
s
−
5
)
,
(
−
5
s
−
3
)
is
(
−
14
)
(
−
2
s
−
14
)
(
−
s
−
16
)
(
−
s
−
14
)
(
−
s
−
11
)
Question
3
3.
The coefficient of term
y
3
z
2
in polynomial
(
3
x
3
z
3
−
9
x
3
z
2
−
9
x
y
3
z
3
−
9
x
z
3
−
4
x
z
+
4
y
3
z
2
−
8
z
2
)
is
7
3
5
2
4
Question
4
4.
The value of
(
−
8
p
4
)
+
(
−
2
p
4
)
+
5
p
4
+
2
p
4
is
(
−
p
4
)
(
−
3
p
4
)
(
−
5
p
4
)
(
−
4
p
4
)
(
−
2
p
4
)
Question
5
5.
Which of the following algebraic expressions is a zero polynomial?
2
i
3
j
3
k
0
(
−
9
i
3
−
3
k
3
)
(
−
6
i
3
j
2
k
3
−
8
i
2
j
3
k
+
j
k
2
−
1
)
(
−
8
i
3
j
3
k
2
−
6
i
3
j
2
−
4
i
k
2
)
Question
6
6.
The value of the polynomial
(
−
6
e
2
f
2
g
2
+
f
2
g
2
−
6
)
at
e
=
(-2)
,
f
=
(-1)
,
g
=
0
is
-9
-3
-6
-5
-7
Question
7
7.
Which of the following terms can be added to
i
h
2
j
2
?
9
h
i
j
h
i
2
j
2
8
h
2
i
j
2
5
h
2
i
2
j
(
−
2
h
2
i
j
)
Question
8
8.
Which of the following terms is a like term of
6
d
2
?
2
d
3
(
−
5
)
(
−
5
d
)
2
d
4
4
d
2
Question
9
9.
Which of the following terms can be subtracted from
(
−
8
e
)
?
(
−
e
g
)
6
f
(
−
e
f
g
)
(
−
3
e
)
2
g
Question
10
10.
The value of
(
−
3
p
2
q
2
r
2
−
8
p
2
r
2
+
4
r
)
+
(
−
6
p
−
9
q
+
7
)
+
(
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
)
is
(
−
3
p
2
q
2
r
2
−
10
p
2
r
2
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
−
6
p
−
9
q
+
4
r
+
7
)
(
−
2
p
2
q
2
r
2
−
8
p
2
r
2
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
−
6
p
−
9
q
+
4
r
+
7
)
(
−
4
p
2
q
2
r
2
−
8
p
2
r
2
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
−
6
p
−
9
q
+
4
r
+
7
)
(
−
3
p
2
q
2
r
2
−
5
p
2
r
2
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
−
6
p
−
9
q
+
4
r
+
7
)
(
−
3
p
2
q
2
r
2
−
8
p
2
r
2
−
6
p
2
r
+
5
p
q
2
r
−
4
p
q
r
2
−
6
p
−
9
q
+
4
r
+
7
)
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