Solve this by using identity (a+b)³ =
(7x\3 + 8y\2)³
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a= 7x/3 b= 4y or 8y/2
(a+b)^3 = a^3 + b^3 + 3a^2b + 3ab^2
Substitute and you will be able to get the answer
(a+b)^3 = a^3 + b^3 + 3a^2b + 3ab^2
Substitute and you will be able to get the answer
Answered by
2
it is right answer of this question.
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