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CISCE(English Medium) ICSE Class 9
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Syllabus

Factorise: A2b2 + 8ab - 9

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Question

Factorise : a2b2 + 8ab - 9

Sum
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Solution

 a2b2 + 8ab - 9 
=  a2b2 + 9ab - ab - 9
= ab( ab + 9 ) -1( ab + 9 )
= ( ab + 9 )( ab - 1 )

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Factorisation of a Quadratic Trinomial by Splitting the Middle Term
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Q 8
Chapter 5: Factorisation - Exercise 5 (B) [Page 71]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 5 Factorisation
Exercise 5 (B) | Q 8 | Page 71
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