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Factorise: 1 - 100a2 - Mathematics

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Sum

Factorise: 1 - 100a2 

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Solution

1 - 100a2 

= = (1)2 – (10a)2 

= (1 + 10a) (1 – 10a)   ...[a2 – b2 = (a + b) (a – b)]

Concept: Factorisation by Difference of Two Squares
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (C) | Q 2 | Page 159
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