Question

12. Verify that : x3 + y3 + z3 - 3xyz = (x + y +z)
[(x - y)2 + (y - )2 + (z - x)2]​

Answer 1

Do it step by step
First apply (a-b)^2= a^2 + b^2 + 2ab
Then solve RHS

Answer 2

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