Question

(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2
(x+y+z)^2-(x-y+z)^2

Answer 1

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