Question

factorise:x²+2xy+y²-1 ​

Answer 1

Answer:

x²+2xy+y²-1

= (x+y)²- (1)²

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

Answer 2

Step-by-step explanation:

so easy

x2 +2xy+y2-1

(x+y)2 - 1

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

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