150 Followers Question

Probability Level pending

How many terms are there when the expression of ( x + y + z ) 2015 + ( x y z ) 2015 (x+y+z)^{2015}+(x-y-z)^{2015} is expanded and simplif ed?

100 8 2 1008^{2} 100 7 2 1007^{2} 201 5 2 2015^{2}

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