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Factorise: 6 + 7b - 3b2 - Mathematics

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Sum

factorise: 6 + 7b - 3b2 

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Solution

6 + 7b - 3b2 

= 6 + 9b - 2b - 3b2

= 3(2 + 3b) - b(2 + 3b)

= (2 + 3b)(3 - b)

Concept: Factorisation by Grouping
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (D) | Q 17 | Page 161
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