Factorise: 5 - 4x(1 + 3x)

factorise: 5 - 4x(1 + 3x)

Sum

5 - 4x(1 + 3x)

= 5 - 4x - 12x²

= 5 - 10x + 6x - 12x²

= 5(1 - 2x)+ 6x (1 - 2x)

= (1 - 2x)(5 + 6x)

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Factorisation by Grouping

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Chapter 13: Factorisation - Exercise 13 (F) [Page 163]

Chapter 13 Factorisation
Exercise 13 (F) | Q 4.6 | Page 163

Factorise by the grouping method : ab - 2b + a² - 2a

Factorise by the grouping method : (ax + by)² + (bx - ay)²

Factorise : x² - (a - 3)x - 3a

Factorise : ab² - (a - c) b - c

Factorise : 2ab² - aby + 2cby - cy²

factorise: 3a² - 5a + 2

Factorise: 2(x + 2y)² − 5(x + 2y) + 2

factorise: 1 - 18x - 63x²

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

Factorise the following by grouping the terms:
2a + b + 3c - d + (2a + b)³ + (2a + b)²(3c - d)