Math, asked by sivanandam, 1 year ago

find the answer.....

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Answered by saurabhrajarar

3

Cube the both sides
(x+y)³=(12)3
x³+y³+3xy(x+y)=1728
x³+y³+3×27(12)=1728
x³+y³+81(12)=1728
x³+y³+972=1728
x³+y³=1728-972
= 756

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