\(x^2+5x-14=0\) के सही गुणनखंड कौनसे हैं?
What are the correct factors of \(x^2+5x-14=0\)?
Explanation opens after your attempt
Correct Answer
A. ((x+7)(x-2))
Concept
(7+(-2)=5) and \(7\times(-2)=-14\), so ((x+7)(x-2)) is correct. In exams, keep one sign positive and one negative.
Why this answer is correct
The correct answer is A. ((x+7)(x-2)). (7+(-2)=5) and \(7\times(-2)=-14\), so ((x+7)(x-2)) is correct. In exams, keep one sign positive and one negative.
Exam Tip
(7+(-2)=5) और \(7\times(-2)=-14\), इसलिए ((x+7)(x-2)) सही है। परीक्षा में एक चिन्ह धनात्मक और एक ऋणात्मक रखें।
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