a + b + C whole cube minus 3 ABC. Ans.
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Answer:
A+B+C whole cube - 3ABC:
3 ABC - ABC = 2 ABC
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There is no formula like a+b+c while cube minus 3a bc
A^3 +b^3+ C^3- 3abc= (a+b+c)(a^2+b^2+c^2-ab-bc- ca)
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