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This question belongs to Arithmetic Ability Simplification
Simplification
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If x + y + z = 0, then x3 + y3 + z3 + 3xyz is equal to = ?

Answer & Solution
Correct Answer: Option B
As we know
a3 + b3 + c3 + 3abc = (a2 + b2 + c2 - ab - bc - ca)(a + b + c)
When, a + b + c = 0
Then a3 + b3 + c3 - 3abc = 0
When, x + y + z = 0
⇒ x3 + y3 + z3 = 3xyz
⇒ x3 + y3 + z3 + 3xyz = 3xyz + 3xyz
⇒ x3 + y3 + z3 + 3xyz = 6xyz
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