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If x = y + z then x3 - y3 -...

This question belongs to Arithmetic Ability Algebra
Algebra
?

If x = y + z then x3 - y3 - z3 is?

Answer & Solution
Correct Answer: Option B
$$\eqalign{ & {\text{Given , }}x = y + z \cr & \therefore x - y - z = 0 \cr & {\text{Then }}{x^3} - {y^3} - {z^3} = 3xyz \cr} $$
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