Question

2x(x-y-z)+2y(x+y-z)+2z(x-y+z) simply
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Answer 1

Answer:

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Step-by-step explanation:

2x²-2xy-2xz+2yx+2y²-2yz+2zx-2zy+2z²

2x²+2y²+2z²-2xy+2yx-2xz+2zx-2yz-2zy

2x²+2y²+2z²-4zy

2(x²+y²+z²-2zy)