Factorise by the Grouping Method: A4 - 2a3 - 4a + 8

Factorise by the grouping method : a⁴ - 2a³ - 4a + 8

Sum

a⁴ - 2a³ - 4a + 8 = a³( a - 2 ) - 4( a - 2 )
= ( a³ - 4 )( a - 2 )

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Factorisation by Grouping

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Chapter 5: Factorisation - Exercise 5 (A) [Page 69]

Chapter 5 Factorisation
Exercise 5 (A) | Q 7 | Page 69

Factorise using the grouping method :
m (x - 3y)² + n (3y - x) + 5x - 15y

Factorise : 2ab²c - 2a + 3b³c - 3b - 4b²c² + 4c

factorise: a² - 5a+ 6

factorise: x² - x - 72

factorise: 8 + 6(a + b) - 5(a + b)²

factorise: a² - 23a + 42

factorise: ax² + b²y - ab² - x²y

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

Factorise the following by grouping the terms:
x(x - 4)- x + 4

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