Question

factorise the following expression:

(x²-2xy+y²)-z²​

Answer 1

Answer:

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Step-by-step explanation:

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)

Answer 2

Answer:

$x(x - 2y) + ( {y}^{2} - {z}^{2} )$

Step-by-step explanation:

Step-by-step explanation is in the picture attatched above