Factorise : a2 - ab(1 - b) - b3 - Mathematics

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Sum

Factorise : a2 - ab(1 - b) - b3

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Solution

a2 - ab(1 - b) - b3

= a2 - ab + ab2 - b3 

= a(a - b) + b2(a - b)

= (a - b) (a + b2)

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

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Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (F) | Q 2.3 | Page 163
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