If x+y+z=6 and (x^2 )+ (y^2 ) + (z^2 )=20, then the value of (x^3 ) – McqOptions

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1.	If x+y+z=6 and (x^2 )+ (y^2 ) + (z^2 )=20, then the value of (x^3 )+ (y^3 )+ (z^3 )-3xyz is
A.	64
B.	70
C.	72
D.	76
Answer» D. 76

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