Math, asked by Darikakhan, 1 year ago

factorise y2-1-2x-x2

Answers

Answered by abiyurekha98

8

Answer:

-(x-y+1)(x+y+1)

Step-by-step explanation:

${y}^{2} - 1 - 2x - {x}^{2}$

(-x+y-1)(x+y+1)

-(x-y+1)(x+y+1)

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