Factorise : Ab - 2b + A2 - 2a - Mathematics

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Sum

Factorise : ab - 2b + a2 - 2a 

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Solution

ab - 2b + a2 - 2a 

= b(a - 2) + a(a - 2)

= (a - 2) (b + a)

Concept: Factorisation by Grouping
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (B) | Q 3 | Page 158
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