EduSahara™ Assignment
Name : Polynomials Multiplication
Chapter : Polynomials and Factorisation
Grade : SSC Grade IX
License : Non Commercial Use
Question
1
1.
The product of the terms
m
,
(
−
m
)
,
(
−
m
)
,
1
,
3
is
(i)
2
m
3
(ii)
4
m
3
(iii)
0
(iv)
3
m
3
(v)
5
m
3
Question
2
2.
The product of the terms
(
−
3
c
d
)
,
(
−
3
b
c
d
)
,
(
−
5
d
)
,
(
−
2
)
,
5
is
(i)
451
b
c
2
d
3
(ii)
450
b
c
2
d
3
(iii)
447
b
c
2
d
3
(iv)
449
b
c
2
d
3
(v)
453
b
c
2
d
3
Question
3
3.
The product of the terms
(
−
1
)
,
(
−
1
)
,
5
,
(
−
4
)
,
(
−
3
)
is
(i)
58
(ii)
62
(iii)
60
(iv)
59
(v)
61
Question
4
4.
The value of
5
x
y
✕
9
x
y
is
(i)
48
x
2
y
2
(ii)
43
x
2
y
2
(iii)
46
x
2
y
2
(iv)
45
x
2
y
2
(v)
44
x
2
y
2
Question
5
5.
The value of
9
r
✕
7
q
r
✕
(
−
2
q
)
✕
(
−
3
q
)
is
(i)
378
q
3
r
2
(ii)
379
q
3
r
2
(iii)
377
q
3
r
2
(iv)
376
q
3
r
2
(v)
381
q
3
r
2
Question
6
6.
The value of
(
−
6
k
l
2
)
✕
(
−
9
)
is
(i)
55
k
l
2
(ii)
54
k
l
2
(iii)
57
k
l
2
(iv)
51
k
l
2
(v)
53
k
l
2
Question
7
7.
The value of
(
−
9
o
q
)
✕
(
−
6
p
q
)
✕
9
q
✕
6
o
is
(i)
2915
o
2
p
q
3
(ii)
2914
o
2
p
q
3
(iii)
2918
o
2
p
q
3
(iv)
2916
o
2
p
q
3
(v)
2917
o
2
p
q
3
Question
8
8.
The value of
3
(
−
t
u
−
3
t
)
is
(i)
(
−
3
t
u
−
12
t
)
(ii)
(
−
4
t
u
−
9
t
)
(iii)
(
−
2
t
u
−
9
t
)
(iv)
(
−
3
t
u
−
6
t
)
(v)
(
−
3
t
u
−
9
t
)
Question
9
9.
The value of
4
(
5
q
2
r
−
3
q
r
2
)
is
(i)
(
20
q
2
r
−
9
q
r
2
)
(ii)
(
20
q
2
r
−
15
q
r
2
)
(iii)
(
20
q
2
r
−
12
q
r
2
)
(iv)
(
21
q
2
r
−
12
q
r
2
)
(v)
(
19
q
2
r
−
12
q
r
2
)
Question
10
10.
The value of
2
w
y
(
−
x
2
y
−
5
x
y
2
)
is
(i)
(
−
2
w
x
2
y
2
−
7
w
x
y
3
)
(ii)
(
−
2
w
x
2
y
2
−
12
w
x
y
3
)
(iii)
(
−
w
x
2
y
2
−
10
w
x
y
3
)
(iv)
(
−
3
w
x
2
y
2
−
10
w
x
y
3
)
(v)
(
−
2
w
x
2
y
2
−
10
w
x
y
3
)
Question
11
11.
The value of
5
(
d
e
2
f
2
+
5
d
e
2
f
−
4
e
)
is
(i)
(
5
d
e
2
f
2
+
25
d
e
2
f
−
20
e
)
(ii)
(
4
d
e
2
f
2
+
25
d
e
2
f
−
20
e
)
(iii)
(
5
d
e
2
f
2
+
28
d
e
2
f
−
20
e
)
(iv)
(
6
d
e
2
f
2
+
25
d
e
2
f
−
20
e
)
(v)
(
5
d
e
2
f
2
+
22
d
e
2
f
−
20
e
)
Question
12
12.
The value of
1
2
(
3
4
h
i
+
1
3
h
)
is
(i)
(
3
8
h
i
+
1
2
h
)
(ii)
(
3
8
h
i
+
1
6
h
)
(iii)
(
3
8
h
i
−
1
6
h
)
(iv)
(
3
10
h
i
+
1
6
h
)
(v)
(
1
2
h
i
+
1
6
h
)
Question
13
13.
The value of
1
3
q
r
(
1
3
q
2
r
+
3
5
q
r
)
is
(i)
(
1
9
q
3
r
2
+
3
5
q
2
r
2
)
(ii)
(
1
11
q
3
r
2
+
1
5
q
2
r
2
)
(iii)
(
1
7
q
3
r
2
+
1
5
q
2
r
2
)
(iv)
(
1
9
q
3
r
2
−
1
5
q
2
r
2
)
(v)
(
1
9
q
3
r
2
+
1
5
q
2
r
2
)
Question
14
14.
The value of
3
5
c
(
3
5
a
b
2
c
+
1
2
b
c
)
is
(i)
(
9
25
a
b
2
c
2
+
1
2
b
c
2
)
(ii)
(
9
23
a
b
2
c
2
+
3
10
b
c
2
)
(iii)
(
9
25
a
b
2
c
2
+
3
10
b
c
2
)
(iv)
(
9
25
a
b
2
c
2
+
1
10
b
c
2
)
(v)
(
1
3
a
b
2
c
2
+
3
10
b
c
2
)
Question
15
15.
The value of
3
5
s
t
(
2
5
r
2
s
2
+
1
2
r
s
t
+
3
5
s
2
)
is
(i)
(
6
25
r
2
s
3
t
+
1
2
r
s
2
t
2
+
9
25
s
3
t
)
(ii)
(
6
25
r
2
s
3
t
+
3
10
r
s
2
t
2
+
9
25
s
3
t
)
(iii)
(
6
25
r
2
s
3
t
+
1
10
r
s
2
t
2
+
9
25
s
3
t
)
(iv)
(
6
23
r
2
s
3
t
+
3
10
r
s
2
t
2
+
9
25
s
3
t
)
(v)
(
2
9
r
2
s
3
t
+
3
10
r
s
2
t
2
+
9
25
s
3
t
)
Question
16
16.
The value of
(
−
8
o
p
−
5
p
)
✕
(
−
4
o
−
6
)
is
(i)
(
33
o
2
p
+
68
o
p
+
30
p
)
(ii)
(
32
o
2
p
+
65
o
p
+
30
p
)
(iii)
(
31
o
2
p
+
68
o
p
+
30
p
)
(iv)
(
32
o
2
p
+
71
o
p
+
30
p
)
(v)
(
32
o
2
p
+
68
o
p
+
30
p
)
Question
17
17.
The value of
(
4
b
2
c
+
8
b
)
✕
(
−
2
b
2
−
3
b
c
2
)
is
(i)
(
−
7
b
4
c
−
12
b
3
c
3
−
16
b
3
−
24
b
2
c
2
)
(ii)
(
−
8
b
4
c
−
12
b
3
c
3
−
16
b
3
−
24
b
2
c
2
)
(iii)
(
−
8
b
4
c
−
9
b
3
c
3
−
16
b
3
−
24
b
2
c
2
)
(iv)
(
−
9
b
4
c
−
12
b
3
c
3
−
16
b
3
−
24
b
2
c
2
)
(v)
(
−
8
b
4
c
−
14
b
3
c
3
−
16
b
3
−
24
b
2
c
2
)
Question
18
18.
The value of
(
f
g
−
9
f
h
+
7
)
✕
(
8
f
h
−
2
g
+
4
)
is
(i)
(
8
f
2
g
h
−
75
f
2
h
2
−
2
f
g
2
+
18
f
g
h
+
4
f
g
+
20
f
h
−
14
g
+
28
)
(ii)
(
9
f
2
g
h
−
72
f
2
h
2
−
2
f
g
2
+
18
f
g
h
+
4
f
g
+
20
f
h
−
14
g
+
28
)
(iii)
(
8
f
2
g
h
−
72
f
2
h
2
−
2
f
g
2
+
18
f
g
h
+
4
f
g
+
20
f
h
−
14
g
+
28
)
(iv)
(
7
f
2
g
h
−
72
f
2
h
2
−
2
f
g
2
+
18
f
g
h
+
4
f
g
+
20
f
h
−
14
g
+
28
)
(v)
(
8
f
2
g
h
−
69
f
2
h
2
−
2
f
g
2
+
18
f
g
h
+
4
f
g
+
20
f
h
−
14
g
+
28
)
Question
19
19.
The value of
(
5
a
b
+
5
a
)
✕
(
9
b
−
6
)
✕
(
7
a
b
−
4
b
)
is
(i)
(
315
a
2
b
3
+
107
a
2
b
2
−
210
a
2
b
−
180
a
b
3
−
60
a
b
2
+
120
a
b
)
(ii)
(
314
a
2
b
3
+
105
a
2
b
2
−
210
a
2
b
−
180
a
b
3
−
60
a
b
2
+
120
a
b
)
(iii)
(
315
a
2
b
3
+
102
a
2
b
2
−
210
a
2
b
−
180
a
b
3
−
60
a
b
2
+
120
a
b
)
(iv)
(
316
a
2
b
3
+
105
a
2
b
2
−
210
a
2
b
−
180
a
b
3
−
60
a
b
2
+
120
a
b
)
(v)
(
315
a
2
b
3
+
105
a
2
b
2
−
210
a
2
b
−
180
a
b
3
−
60
a
b
2
+
120
a
b
)
Question
20
20.
The value of
1
2
r
✕
1
5
is
(i)
1
12
r
(ii)
3
10
r
(iii)
1
10
r
(iv)
(
−
1
10
r
)
(v)
1
8
r
Question
21
21.
The value of
3
4
✕
1
3
v
✕
3
4
u
✕
3
4
u
v
is
(i)
9
64
u
2
v
2
(ii)
9
62
u
2
v
2
(iii)
3
22
u
2
v
2
(iv)
7
64
u
2
v
2
(v)
11
64
u
2
v
2
Question
22
22.
The value of
2
3
m
n
2
o
✕
3
5
m
2
o
2
is
(i)
2
5
m
3
n
2
o
3
(ii)
2
7
m
3
n
2
o
3
(iii)
4
5
m
3
n
2
o
3
(iv)
0
(v)
2
3
m
3
n
2
o
3
Question
23
23.
The value of
1
4
a
✕
1
4
a
c
✕
1
3
a
b
c
✕
1
3
a
b
is
(i)
1
146
a
4
b
2
c
2
(ii)
1
48
a
4
b
2
c
2
(iii)
1
144
a
4
b
2
c
2
(iv)
1
142
a
4
b
2
c
2
(v)
(
−
1
144
a
4
b
2
c
2
)
Assignment Key
1) (iv)
2) (ii)
3) (iii)
4) (iv)
5) (i)
6) (ii)
7) (iv)
8) (v)
9) (iii)
10) (v)
11) (i)
12) (ii)
13) (v)
14) (iii)
15) (ii)
16) (v)
17) (ii)
18) (iii)
19) (v)
20) (iii)
21) (i)
22) (i)
23) (iii)
