Question

x^2-2xy+y^2-z^2 factorise​

Answer 1

Answer:

• (x^2-2xy+y^2)-z^2

by using identity[(a-b)^2=a^2-2ab+b^2]

• (x-y)^2-z^2

By using identity[a^2-b^2=(a+b)(a-b)]

• (x-y-z)(x-y+z)

Step-by-step explanation:

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