Question

(a-b) (a+b)+(b-c) (b+c)+(c-a) (c+a)=0 show that
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Answer 1

Answer:

*this question is too simple just put the formula and cut every thing by same values of -and+ ok

* are you understand or not

Explanation:

Answer 2

Answer:

can u plz tell the value of a, b and c