[Paritosh Verma]

Is it possible to solve this problem with the help of AM GM inequality?

[dev2002]

If we use AM-GM inequality x>=2 y>=2 z>=2

so x^2+y^2+z^2>=4+4+4=12 and xyz>=222=8

So x^2+y^2+z^2-xyz>=4. That's what I'm getting , it will be helpful if you could mention if the answer is correct or not.

[Paritosh Verma]

yes, the final answer is 4. Thanks.

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