Question

What should be added to
${x}^{3} + {3x}^{2} y + {3xy}^{2} + {y}^{3}$
to get
${x}^{3} + {y}^{3}$
please help me answer fast
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Answer 1

Answer:

according to question :-

x^3 + y^3 + ? = x^3 + 3x^2y + 3xy^2 + y^3

x^3+y^3 + ? = x^3 + y^3 + 3x^2y +3xy^2

? = x^3 + y^3 + 3x^2 + 3xy^2 - x^3 - y^3

? = 3x^2 + 3xy^2

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