Correct Answer: A. \(49m^2-9n^2\) / सही परिणाम. Explanation: यह ( (7m)2-(3n)2 ) है। परीक्षा में ( (a+b)(a-b) ) पहचान पहचानें। / This is ( (7m)2-(3n)2 ). Exam tip: identify the ( (a+b)(a-b) ) identity.
Which concept should I revise for this Mathematics MCQ?
This is ( (7m)2-(3n)2 ). Exam tip: identify the ( (a+b)(a-b) ) identity.
What exam hint can help solve this Mathematics question?
यह ( (7m)2-(3n)2 ) है। परीक्षा में ( (a+b)(a-b) ) पहचान पहचानें।
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