\(2x^2-4x+5=0\) में पूर्ण वर्ग रूप कौनसा सही है?
Which completed square form is correct for \(2x^2-4x+5=0\)?
Explanation opens after your attempt
Correct Answer
A. (2(x-1)2+3=0)
Concept
(2x-2-4x+5=2(x-1)2+3), so it cannot be zero for real (x). In exams, completed square form also shows no real roots.
Why this answer is correct
The correct answer is A. (2(x-1)2+3=0). (2x-2-4x+5=2(x-1)2+3), so it cannot be zero for real (x). In exams, completed square form also shows no real roots.
Exam Tip
(2x-2-4x+5=2(x-1)2+3), इसलिए यह वास्तविक (x) के लिए शून्य नहीं हो सकता। परीक्षा में पूर्ण वर्ग रूप से भी no real roots दिखता है।
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