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Class VI
Class VII
Class VIII
Class IX
Class X
ICSE Grade VIII - Simplification of Algebraic Fractions
Question
1
1.
Simplify
(
6
x
2
−
25
x
−
9
)
(
9
x
2
−
3
x
−
2
)
(
2
x
+
9
)
(
3
x
+
2
)
(
4
x
−
9
)
(
−
2
)
(
2
x
−
9
)
(
3
x
+
2
)
(
3
x
−
9
)
(
3
x
+
2
)
(
2
x
−
9
)
(
3
x
−
2
)
Question
2
2.
Simplify
(
x
2
−
5
x
)
(
3
x
−
2
y
)
✕
(
9
x
2
−
4
y
2
)
(
x
2
−
25
)
(
3
x
2
+
2
x
y
)
(
x
−
5
)
(
3
x
2
+
2
x
y
)
(
x
+
5
)
(
3
x
2
+
4
x
y
)
(
x
+
5
)
(
−
3
x
2
+
2
x
y
)
(
x
−
5
)
(
4
x
2
+
2
x
y
)
(
x
+
5
)
Question
3
3.
Simplify
(
9
x
2
−
36
)
(
16
x
2
−
4
)
✕
(
4
x
−
2
)
(
3
x
−
6
)
(
3
x
+
6
)
(
4
x
−
2
)
(
3
x
+
6
)
(
4
x
+
2
)
(
3
x
−
6
)
(
4
x
−
2
)
(
2
x
+
3
)
(
2
x
−
1
)
(
5
x
+
6
)
(
x
+
2
)
Question
4
4.
Simplify
(
5
x
+
2
)
5
−
(
3
x
−
1
)
4
(
6
x
+
13
)
20
(
x
+
3
)
4
(
5
x
−
13
)
22
(
5
x
+
13
)
22
(
5
x
+
13
)
20
Question
5
5.
Find the H.C.F. of
84
x
2
y
2
z
and
204
x
y
3
z
2
12
x
2
y
2
z
12
x
y
2
z
3
1428
x
2
y
3
z
2
12
x
y
2
z
12
x
y
4
z
Question
6
6.
Which of the following gives the H.C.F of two or more polynomials?
( H.C.F. of numerical coefficients ) ✕ ( Each common factor raised to the lowest power )
( Product of numerical coefficients ) ✕ ( Each common factor raised to the highest power )
( H.C.F. of numerical coefficients ) ✕ ( Each common factor raised to the highest power )
( Product of numerical coefficients ) ✕ ( Each common factor raised to the lowest power )
Question
7
7.
Simplify
(
10
x
2
+
36
x
+
18
)
(
10
x
2
−
24
x
−
18
)
(
3
x
+
6
)
(
2
x
+
6
)
(
x
−
3
)
(
x
+
3
)
(
2
x
+
3
)
(
−
3
)
(
x
+
3
)
(
x
−
3
)
(
x
+
3
)
(
x
+
3
)
Question
8
8.
Simplify
(
x
+
6
)
(
x
2
−
36
)
+
(
4
x
−
1
)
(
4
x
2
+
23
x
−
6
)
−
(
4
x
−
4
)
(
x
2
−
36
)
(
−
2
x
−
4
)
(
x
2
+
36
)
(
−
2
x
+
4
)
(
x
2
−
36
)
(
−
x
+
4
)
(
x
2
+
36
)
(
x
+
4
)
(
−
x
2
−
36
)
(
−
2
x
+
4
)
(
x
2
+
36
)
Question
9
9.
Simplify
(
9
x
2
−
24
x
+
7
)
(
9
x
2
−
45
x
+
56
)
÷
(
5
x
2
+
x
−
18
)
(
12
x
2
−
17
x
−
40
)
(
12
x
2
+
11
x
−
5
)
(
5
x
2
+
x
−
18
)
(
12
x
2
+
11
x
−
5
)
(
5
x
2
+
x
+
18
)
(
12
x
2
+
11
x
+
5
)
(
5
x
2
+
x
+
18
)
(
13
x
2
+
11
x
−
5
)
(
5
x
2
+
x
+
18
)
(
15
x
2
+
11
x
−
5
)
(
2
x
2
+
x
−
18
)
Question
10
10.
Simplify
(
x
2
+
8
x
)
(
x
2
+
17
x
+
72
)
3
x
(
−
x
+
9
)
x
(
x
+
9
)
2
x
(
x
−
9
)
x
(
x
−
9
)
(
−
x
)
(
x
−
9
)
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