Factorise Completely: 2a2b2 - 98b4 - Mathematics

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Sum

Factorise completely:   2a2b2 - 98b4 

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Solution

2a2b2 - 98b4 = 2b2 (a2 - 49b2

= 2b2 [(a)2 - (7b)2

= 2b2 (a + 7b)(a - 7b)

Concept: Factorising Completely
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Chapter 13: Factorisation - Exercise 13 (E) [Page 162]

APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (E) | Q 19 | Page 162
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