What will be the value of x3+y3+z3-3xyz when x+y+z=9 and x2+y2+z2=31? – McqOptions

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1.	What will be the value of x³+y³+z³-3xyz when x+y+z=9 and x²+y²+z²=31?
A.	54
B.	9
C.	27
D.	3
Answer» B. 9

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