\(x^2-2x-8=0\) के लिए सही गुणनखंड कौनसे हैं?
What are the correct factors for \(x^2-2x-8=0\)?
Explanation opens after your attempt
A. ((x-4)(x+2))
Concept
Since (-4+2=-2) and \(-4\times2=-8\), ((x-4)(x+2)) is correct. In exams, match both product and sum.
Why this answer is correct
The correct answer is A. ((x-4)(x+2)). Since (-4+2=-2) and \(-4\times2=-8\), ((x-4)(x+2)) is correct. In exams, match both product and sum.
Exam Tip
(-4+2=-2) और \(-4\times2=-8\), इसलिए ((x-4)(x+2)) सही है। परीक्षा में गुणनफल और योग दोनों मिलाएं।
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