Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation

Selina Publishers Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation

Factorisation Exercise 13A – Selina Concise Mathematics Class 8 ICSE Solutions

Factorise :
Question 1.
15x + 5
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 1

Question 2.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 2

Question 3.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q3
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 3

Question 4.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 4

Question 5.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q5
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 5

Question 6.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q6
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 6

Question 7.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q7
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 7

Question 8.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q8
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 8

Question 9.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q9
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 9

Question 10.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q10
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 10

Question 11.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q11
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 11

Question 12.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q12
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 12

Question 13.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q13
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 13

Question 14.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q14
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 14

Question 15.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q15
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 15

Question 16.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q16
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 16

Question 17.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A Q17
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13A 17

Factorisation Exercise 13B – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
Factorise : a2 + ax + ab + bx
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 18

Question 2.
Factorise : a2 – ab – ca + bc
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 19

Question 3.
Factorise : ab – 2b + a2 – 2a
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 20

Question 4.
Factorise : a3 – a2 + a – 1
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 21

Question 5.
Factorise : 2a – 4b – xa + 2bx
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 22

Question 6.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q6
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 23

Question 7.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q7
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 24

Question 8.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q8
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 25

Question 9.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q9
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 26

Question 10.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q10
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 27

Question 11.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q11
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 28

Question 12.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q12
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 29

Question 13.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q13
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 30

Question 14.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q14

Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 31

Question 15.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q15
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 32

Question 16.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q16
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 33

Question 17.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q17
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 34

Question 18.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q18
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 35

Question 19.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q19
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 36

Question 20.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B Q20
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13B 37

Factorisation Exercise 13C – Selina Concise Mathematics Class 8 ICSE Solutions

Note : a2 – b2 = (a + b) (a – b)
Question 1.
Factorise : 16 – 9x2
Solution:

Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 38

Question 2.
Factorise : 1 – 100a2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 39

Question 3.
Factorise : 4x2 – 81y2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 40

Question 4.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 41

Question 5.
Factorise : (a+2b)2 – a2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 42

Question 6.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q6
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 43

Question 7.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q7
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 44

Question 8.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q8
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 45

Question 9.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q9
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 46

Question 10.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q10
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 47

Question 11.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q11
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 48

Question 12.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q12
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 49

Question 13.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q13
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 50

Question 14.
Evaluate :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q14
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 51

Question 15.
Evaluate :
(0.7)2 – (0.3)2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 52

Question 16.
Evaluate :
(4.5)2 – (1.5)2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 53

Question 17.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q17
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 54

Question 18.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q18
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 55

Question 19.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q19
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 56

Question 20.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C Q20
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13C 57

Factorisation Exercise 13D – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q1
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 58

Question 2.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 59

Question 3.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q3
Solution:
<Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 60

Question 4.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 61

Question 5.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q5
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 62

Question 6.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q6
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 63

Question 7.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q7
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 64

Question 8.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q8
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 65

Question 9.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q9
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 66

Question 10.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q10
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 67

Question 11.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q11
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 68

Question 12.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q12
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 69

Question 13.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q13
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 70

Question 14.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q14
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 71

Question 15.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q15
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 72

Question 16.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q16
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 73

Question 17.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q17
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 74

Question 18.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q18
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 75

Question 19.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q19
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 76

Question 20.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q20
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 77

Question 21.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q21
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 78

Question 22.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q22
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 79

Question 23.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q23
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 80

Question 24.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q24
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 81

Question 25.
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D Q25
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13D 82

Factorisation Exercise 13E – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
In each case find whether the trinomial is a perfect square or not:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E Q1
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 83
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 84

Question 2.
Factorise completely 2 – 8x2.
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 85

Question 3.
Factorise completely : 8x2y – 18y3
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 86

Question 4.
Factorise completely : ax2 – ay2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 87

Question 5.
Factorise completely : 25x3 – x
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 88

Question 6.
Factorise completely : a4 – b4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 89

Question 7.
Factorise completely : 16x4 – 81y4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 90

Question 8.
Factorise completely : 625 – x4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 91

Question 9.
Factorise completely : x2 – y2 – 3x – 3y
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 92

Question 10.
Factorise completely : x2 – y2 – 2x + 2y
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 93

Question 11.
Factorise completely : 3x2 + 15x – 72
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 94

Question 12.
Factorise completely : 2a2 – 8a – 64
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 95

Question 13.
Factorise completely : 5b2 + 45b + 90
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 96

Question 14.
Factorise completely : 3x2y + 11xy + 6y
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 97

Question 15.
Factorise completely : 5ap2 + 11ap + 2a
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 98

Question 16.
Factorise completely : a2 + 2ab + b2 – c2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 99

Question 17.
Factorise completely : x2 + 6xy + 9y2 + x + 3y
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 100

Question 18.
Factorise completely : 4a2 – 12ab + 9b2 + 4a – 6b
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 101

Question 19.
Factorise completely : 2a2b2 – 98b4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 102

Question 20.
Factorise completely : a2 – 16b2 – 2a – 8b
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13E 103

Factorisation Exercise 13F – Selina Concise Mathematics Class 8 ICSE Solutions

Question 1.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q1
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 104

Question 2.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q2
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 105
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 106

Question 3.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q3
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 107
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 108

Question 4.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q4
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 109
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 110

Question 5.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q5
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 111

Question 6.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q6
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q6.1
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 112
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 113

Question 7.
Factorise xy2 – xz2, Hence, find the value of:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q7
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 114

Question 8.
Factorise :
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F Q8
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 115
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 116

Question 9.
Factorise a2b – b3 Using this result, find the value of 1012 × 100 – 1003.
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 117

Question 10.
Evaluate (using factors): 3012 × 300 – 3003.
Solution:
Selina Concise Mathematics Class 8 ICSE Solutions Chapter 13 Factorisation Ex 13F 118

Selina Concise Mathematics Class 8 ICSE Solutions