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Factorise: X2y2 - 3xy - 40 - Mathematics

Sum

factorise: x2y2 - 3xy - 40 

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Solution

x2y2 - 3xy - 40 

= x2y2 - 8xy + 5xy - 40

= xy (xy - 8) + 5 (xy - 8)

= (xy - 8)(xy + 5) 

Concept: Factorisation by Grouping
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (F) | Q 4.7 | Page 163
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