Question

(x-y-z)whole square​

Answer 1

Answer:

Step-by-step explanation:

(x-y-z)^2=x^2+y^2+z^2+2(-xy+yz-zx)

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Answer 2

Answer:

(x^2) +(y^2) +(z^2) -2xy-2xz+2yz

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