Factorise : X2 - (B - 2)X - 2b

Factorise : x² - (b - 2)x - 2b

Sum

x² - (b - 2)x - 2b

= x² - bx + 2x - 2b

= x (x - b) + 2(x - b)

= (x - b) (x + 2)

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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 12 | Page 158

Factorise : a³ -a² +a -1

Factorise : 3x⁵ - 6x⁴ - 2x³ + 4x² + x - 2

factorise: 2x² + xy - 6y²

factorise: 4c² + 3c - 10

factorise: 14x² + x - 3

factorise: ax² + b²y - ab² - x²y

Factorise the following by grouping the terms:
9 + 3xy + x²y + 3x

Factorise the following by grouping the terms:
4abx² + 49aby² + 14xy(a² + b²)

Factorise the following by grouping the terms:
3ax² - 5bx² + 9az² + 6ay² - 10by² - 15bz²

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