Question

Factorise this given question​

Answer 1

Answer:

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x^2-1-2y-y^2

x^2y^2-2y-1

x^2-(y^2-2y+1)

x^2-(y+1)^2

(x+y-1)(x-y-1); (x^2-y^2 = (x+y)(x-y)

it correct

Answer 2

Step-by-step explanation:

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