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সরল কর :

Created: 2 years ago | Updated: 1 month ago
Updated: 1 month ago
Ans :

মনে করি, 2a + 3b = x এবং 3b - a = y

∴ প্রদত্ত রাশি =(x)2-2.x.y+(y)2=(x-y)2

={(2a+3b)-(3b-a)}2 [মান বসিয়ে]

=(2a+3b-3b+a)2=(3a)2=9a2(Ans.)

2 months ago

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