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If x+y+z=2, xy+yz+zx =-11 and xyz =-12, ...

If x+y+z=2, xy+yz+zx =-11 and xyz =-12, then what is the value of `sqrt(x^3 + y^3 +z^3-2)` ?

A

9

B

6

C

12

D

8

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