निम्न में से किस समीकरण का एक मूल (0) है?
Which of the following equations has one root (0)?
Explanation opens after your attempt
A. \(x^2+5x=0\)
Concept
(x-2+5x=x(x+5)) so (x=0) is one root. If the constant term is (0) check for a zero root.
Why this answer is correct
The correct answer is A. \(x^2+5x=0\). (x-2+5x=x(x+5)) so (x=0) is one root. If the constant term is (0) check for a zero root.
Exam Tip
(x-2+5x=x(x+5)) इसलिए (x=0) एक मूल है। अचर पद (0) हो तो शून्य मूल की संभावना देखें।
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