If x + y + z = 9 and xy + yz + zx = 23, then the value of (x3 + y3 + z3 – 3xyz) is :

If x + y + z = 9 and xy + yz + zx = 23, then the value of (x3 + y3 + z

1.	If x + y + z = 9 and xy + yz + zx = 23, then the value of (x3 + y3 + z3 – 3xyz) is :
A.	108
B.	207
C.	669
D.	729
Answer» B. 207

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If x + y + z = 9 and xy + yz + zx = 23, then the value of (x3 + y3 + z3 – 3xyz) is :

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