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Factorise: 5 + 3a - 14a2 - Mathematics

Sum

factorise: 5 + 3a - 14a2

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Solution

5 + 3a - 14a2

5 + 10a - 7a - 14a2

= 5(1 + 2a) - 7a (1 + 2a)

= (1 + 2a) (5 - 7a)

Concept: Factorisation by Grouping
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (D) | Q 20 | Page 161
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