NCERT Solutions for Class 8 Maths Chapter 14 Factorisation Ex 14.3
- Class 8 Maths Factorisation Exercise 14.1
- Class 8 Maths Factorisation Exercise 14.2
- Class 8 Maths Factorisation Exercise 14.3
- Factorisation Class 8 Extra Questions
NCERT Solutions for Class 8 Maths Chapter 14 Factorisation Exercise 14.3
Ex 14.3 Class 8 Maths Question 1.
Carry out the following divisions.
(i) 28x
4
÷ 56x
(ii) -36y
3
÷ 9y
2
(iii) 66pq
2
r
3
÷ 11qr
2
(iv) 34x
3
y
3
z
3
÷ 51xy
2
z
3
(v) 12a
8
b
8
÷ (-6a
6
b
4
)
Solution:
Ex 14.3 Class 8 Maths Question 2.
Divide the following polynomial by the given monomial.
(i) (5x
2
– 6x) ÷ 3x
(ii) (3y
8
– 4y
6
+ 5y
4
) ÷ y
4
(iii) 8(x
3
y
2
z
2
+ x
2
y
3
z
2
+ x
2
y
2
z
3
) ÷ 4x
2
y
2
z
2
(iv) (x
3
+ 2x
2
+ 3x) ÷ 2x
(v) (p
3
q
6
– p
6
q
3
) ÷ p
3
q
3
Solution:
Ex 14.3 Class 8 Maths Question 3.
Work out the following divisions.
(i) (10x – 25) ÷ 5
(ii) (10x – 25) ÷ (2x – 5)
(iii) 10y(6y + 21) ÷ 5(2y + 7)
(iv) 9x
2
y
2
(3z – 24) ÷ 27xy(z – 8)
(v) 96abc(3a – 12) (5b – 30) ÷ 144(a – 4)(b – 6)
Solution:
Ex 14.3 Class 8 Maths Question 4.
Divide as directed.
(i) 5(2x + 1) (3x + 5) ÷ (2x + 1)
(ii) 26xy (x + 5)(y – 4) ÷ 13x(y – 4)
(iii) 52pqr(p + q) (q + r) (r + p) ÷ 104pq(q + r)(r + p)
(iv) 20(y + 4)(y
2
+ 5y + 3) ÷ 5(y + 4)
(v) x(x + 1) (x + 2) (x + 3) ÷ x(x + 1)
Solution:
Ex 14.3 Class 8 Maths Question 5.
Factorise the expressions and divide them as directed.
(i) (y
2
+ 7y + 10) ÷ (y + 5)
(ii) (m
2
– 14m – 32) ÷ (m + 2)
(iii) (5p
2
– 25p + 20) ÷ (p – 1)
(iv) 4yz(z
2
+ 6z – 16) ÷ 2y(z + 8)
(v) 5pq(p
2
– q
2
) ÷ 2p(p + q)
(vi) 12xy(9x
2
– 16y
2
) ÷ 4xy(3x + 4y)
(vii) 39y
3
(50y
2
– 98) ÷ 26y
2
(5y + 7)
Solution:
More CBSE Class 8 Study Material
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