Question

(x-2xy+y^2)-z^2 factories ​

Answer 1

Answer:

(x

2

−2xy+y

2

)−z

2

⇒[x(x−y)−y(x−y)]−z

2

⇒(x−y)(x−y)−z

2

⇒(x−y)

2

−z

2

⇒[(x−y)+z][(x−y)−z]

⇒(x−y+z)(x−y−z)

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