Question

x^2+2xy+y^2-1
factories​

Answer 1

Answer:

x² + 2xy + y² - 1

(x + y)² - 1

(x + y)² - 1²

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

Answer 2

Answer:

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

Step-by-step explanation:

$= x {}^{2} + 2xy + {y}^{2}-1 \\ = (x + y) {}^{2} - 1 \\ = (x + y + 1)(x + y - 1)$

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