Factorise : 2ab2 - Aby + 2cby - Cy2

Factorise : 2ab² - aby + 2cby - cy²

Sum

2ab² - aby + 2cby - cy²

= 2b (ab + cy) - y (ab + cy)

= (ab + cy) (2b - y)

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Factorisation by Grouping

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Chapter 13: Factorisation - Exercise 13 (B) [Page 158]

Chapter 13 Factorisation
Exercise 13 (B) | Q 18 | Page 158

Factorise by the grouping method:

ab (x² + 1) + x (a² + b²)

Factorize using the grouping method:

x² + y² + x + y + 2xy

Factorise : a² + ax + ab + bx

Factorise : a³ -a² +a -1

factorise: x² + 5xy + 4y²

factorise: 1 − (2x + 3y) − 6(2x + 3y)²

Factorise the following by grouping the terms:
15xy - 9x - 25y + 15

Factorise the following by grouping the terms:
8x³ - 24x²y + 54xy² -162y³

Factorise the following by grouping the terms:
p²x² + (px² + 1)x + p

Factorise the following by grouping the terms:
x² - (p + q)x + pq