If a+b+c = 3s, then [(s-a)2 + (s-b)2 + (s-c)2 + 3s2] = ? – McqOptions

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1.	If a+b+c = 3s, then [(s-a)2 + (s-b)2 + (s-c)2 + 3s2] = ?
A.	(a+b+c)2
B.	a2+b2+c2
C.	2(a+b+c)
D.	2abc
Answer» C. 2(a+b+c)

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