## ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 11 Factorisation Ex 11.2

**Factorise the following (1 to 11) polynomials:
**Question 1.

(i) x

^{2}+ xy – x – y

(ii) y

^{2}– yz – 5y + 5z

Solution:

Question 2.

(i) 5xy + 7y – 5y^{2} – 7x

(ii) 5p^{2} – 8pq – 10p + 16q

Solution:

Question 3.

(i) a^{2}b – ab^{2} + 3a – 3b

(ii) x^{3} – 3x^{2} + x – 3

Solution:

Question 4.

(i) 6xy^{2} – 3xy – 10y + 5

(ii) 3ax – 6ay – 8by + 4bx

Solution:

Question 5.

(i) x^{2} + xy (1 + y) + y^{3}

(ii) y^{2} – xy (1 – x) – x^{3}

Solution:

Question 6.

(i) ab^{2} + (a – 1) b – 1

(ii) 2a – 4b – xa + 2bx

Solution:

Question 7.

(i) 5ph – 10qk + 2rph – 4qrk

(ii) x^{2} – x(a + 2b) + 2a^{2}

Solution:

Question 8.

(i) ab (x^{2} + y^{2}) – xy (a^{2} + b^{2})

(ii) (ax + by)^{2} + (bx – ay)^{2}

Solution:

Question 9.

(i) a^{3} + ab(1 – 2a) – 2b^{2}

(ii) 3x^{2}y – 3xy + 12x – 12

Solution:

Question 10.

(i) a^{2}b + ab^{2} – abc – b^{2}c + axy + bxy

(ii) ax^{2} – bx^{2} + ay^{2} – by^{2} + az^{2} – bz^{2}

Solution:

Question 11.

(i) x – 1 – (x – 1)^{2} + ax – a

(ii) ax + a^{2}x + aby + by – (ax + by)^{2}

Solution: