समीकरण \(x^2-3x-40=0\) के मूलों का सही युग्म कौन-सा है?
Which pair is the correct roots of \(x^2-3x-40=0\)?
Explanation opens after your attempt
A. (8,-5)
Concept
From ((x-8)(x+5)=0), the roots are (8) and (-5). Check both product and sum.
Why this answer is correct
The correct answer is A. (8,-5). From ((x-8)(x+5)=0), the roots are (8) and (-5). Check both product and sum.
Exam Tip
((x-8)(x+5)=0) से मूल (8) और (-5) मिलते हैं। गुणनफल और योग दोनों मिलाकर जांचें।
Login to save your score, XP, coins and progress.
