Factorise : Xy2 + (X - 1) Y - 1 - Mathematics

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Sum

factorise : xy2 + (x - 1) y - 1 

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Solution

xy2 + (x - 1) y - 1 = xy2+ xy - y - 1

= xy (y + 1) - 1 (y + 1)

= (xy - 1)(y + 1)

  Is there an error in this question or solution?
Chapter 13: Factorisation - Exercise 13 (F) [Page 163]

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Selina Concise Mathematics Class 8 ICSE
Chapter 13 Factorisation
Exercise 13 (F) | Q 2.4 | Page 163
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