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Factorise Completely: 2 - 8x2 - Mathematics

Sum

Factorise completely: 2 - 8x

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Solution

2 - 8x2 = 2(1 - 4x2

= 2[(1)2 - (2x)2

= 2(1 + 2x) (1 - 2x)

Note: a2 - b2 = (a+b) (a-b)

Concept: Factorising Completely
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (E) | Q 2 | Page 162
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