\(16m^2-40mn+25n^2\) का सही गुणनखंड रूप चुनिए।
Choose the correct factorised form of \(16m^2-40mn+25n^2\).
Explanation opens after your attempt
B. ((4m-5n)2)
Concept
The middle term is negative, so the perfect square is ((4m-5n)2). Exam tip: check both square roots and sign.
Why this answer is correct
The correct answer is B. ((4m-5n)2). The middle term is negative, so the perfect square is ((4m-5n)2). Exam tip: check both square roots and sign.
Exam Tip
मध्य पद ऋण है इसलिए पूर्ण वर्ग ((4m-5n)2) बनेगा। परीक्षा में वर्गमूल और चिह्न दोनों जांचें।
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