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hey everyone!!! Ive got this tricky question (probably way too easy for u maths gurus :) ) If a+b+c=0, show that (2a-b)^3 + (2b-c)^3 + (2c-a)^3 = 3(2a-b)(2b-c)(2c-a) Could someone please show me how to do it, please??? Thanks in advance.