\(m^2+4mn+4n^2-25\) को गुणनखंडित कीजिए।
Factorise \(m^2+4mn+4n^2-25\).
Explanation opens after your attempt
Correct Answer
A. ((m+2n-5)(m+2n+5))
Concept
The first three terms are ((m+2n)2), and \(25=5^2\) is being subtracted. In exams, identify the hidden square.
Why this answer is correct
The correct answer is A. ((m+2n-5)(m+2n+5)). The first three terms are ((m+2n)2), and \(25=5^2\) is being subtracted. In exams, identify the hidden square.
Exam Tip
पहले तीन पद ((m+2n)2) हैं और फिर \(25=5^2\) घट रहा है। परीक्षा में छिपे वर्ग को पहचानें।
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