If a + b + c = 6, a3 + b3 + c3 - 3 abc = 342,and a2 + b2 + c2 = 50, – McqOptions

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1.	If a + b + c = 6, a3 + b3 + c3 - 3 abc = 342,and a2 + b2 + c2 = 50, then what is the value of ab + bc + ca?
A.	5
B.	- 5
C.	- 7
D.	8
Answer» D. 8

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