\(x^2-4x+5\) को पूर्ण वर्ग जोड़कर किस रूप में लिखा जा सकता है?
How can \(x^2-4x+5\) be written by completing the square?
Explanation opens after your attempt
A. ((x-2)2+1)correct form
Concept
(x-2-4x+4=(x-2)2), so write (5) as (4+1). In exams take half of the middle coefficient.
Why this answer is correct
The correct answer is A. ((x-2)2+1) / correct form. (x-2-4x+4=(x-2)2), so write (5) as (4+1). In exams take half of the middle coefficient.
Exam Tip
(x-2-4x+4=(x-2)2), इसलिए (5) को (4+1) लिखते हैं। परीक्षा में मध्य गुणांक का आधा लें।
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