Question

Factorise
( a-b 3 +(b-c)3+(c-a)3​

Answer 1

= (a-b)3 +(b-c)3 + (c-a)3

= +3a -3b +3b -3c +3c -3a

= 0

(Minus and plus cancels each other.)

Hope it helps you.

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