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CISCE(English Medium) ICSE Class 9
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Syllabus

Expand : ( X + 8 )( X - 10 )

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Question

Expand : ( x + 8 )( x - 10 )

Sum
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Solution

( x + 8 )( x - 10 ) = x2 + ( 8 - 10 )x + 8 x (-10)
                           = x2 - 2x - 80

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Expansion of Formula
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Q 1.2
Chapter 4: Expansions - Exercise 4 (C) [Page 62]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 4 Expansions
Exercise 4 (C) | Q 1.2 | Page 62
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