If x+y+z = 18, xyz = 81 and xy+yz+zx = 90, then the value of x^3 + y^3 + z^3 + xyz is:

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If x+y+z = 18, xyz = 81 and xy+yz+zx = 90, then the value of x^3 + y^3 + z^3 + xyz is:

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