समीकरण \(x^2-2x-15=0\) के मूलों में से कौन-सा सही युग्म है?
Which pair is the correct roots of \(x^2-2x-15=0\)?
Explanation opens after your attempt
Correct Answer
B. (5,-3)
Concept
From ((x-5)(x+3)=0), the roots are (5) and (-3). Match both product and sum in such questions.
Why this answer is correct
The correct answer is B. (5,-3). From ((x-5)(x+3)=0), the roots are (5) and (-3). Match both product and sum in such questions.
Exam Tip
((x-5)(x+3)=0) से मूल (5) और (-3) मिलते हैं। ऐसे प्रश्नों में गुणनफल और योग दोनों मिलाएं।
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