Question
Download Solution PDFউৎপাদকে বিশ্লেষণ করুন 49a2 + 70ab + 25b2
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFদেওয়া হয়েছে: 49a2 + 70ab + 25b2
সূত্র ব্যবহার করা হয়েছে:
- (a + b) 2 = a 2 + 2ab + b 2
গণনা:
আমরা জানি যে 49 = 7 2 , 70 = 2 x 5 x 7, এবং 25 = 5 2
এখন সমীকরণটি হয়ে যায়,
72a2 + (2 x 5 x 7) ab + 52b2
= (7a)2+ 2(7a) (5b) + (5b)2
যেহেতু সমীকরণটি (a+ b)2 এর প্রতিনিধিত্ব করে,
সুতরাং, (7a)2 + 2(7a) (5b) + (5b)2
= (7a+5b)2
অতএব, সঠিক উত্তর হল বিকল্প 2।
Last updated on Jun 2, 2025
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