Q. (3a+4b)³ का गुणनफल निकालें :-

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Q. (3a+4b)³ का गुणनफल निकालें :-

Sundaram yadav December 28, 2023 0

हल:- दिया है:-(3a+4b)³ {∵(a+b)³=a³+b³+3a²b+3ab²}

=(3a)³+(4b)³+3×(3a)²×4b+3×3a×(4b)²

= 27a³+64b³+3×9a²×4b+9a×16b²

=27a³+64b³+108a²b+144ab²

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