\(4x^2+kx+1\) को ((2x+1)2) बनाने के लिए (k) क्या होगा?
What should (k) be to make \(4x^2+kx+1\) equal to ((2x+1)2)?
Explanation opens after your attempt
B. (4)
Concept
((2x+1)2=4x-2+4x+1). In exams, check the middle term (2ab).
Why this answer is correct
The correct answer is B. (4). ((2x+1)2=4x-2+4x+1). In exams, check the middle term (2ab).
Exam Tip
((2x+1)2=4x-2+4x+1) है। परीक्षा में (2ab) वाला मध्य पद देखें।
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