Math, asked by hkishor60gmailcom, 2 months ago

Solve this question Don't spam I need the solution of this question.

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Answered by aa9051812

4

Answer:

x+y=7(cubing both sides) ⇒(x+y)3=(7)3⇒x3+y3+3(x+y)xy=343⇒x3+y3+21xy=343

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