किस विकल्प में (x=2) और (x=7) मूल हैं?
Which option has roots (x=2) and (x=7)?
Explanation opens after your attempt
Correct Answer
A. \(x^2-9x+14=0\)
Concept
If the roots are (2) and (7), the factors are ((x-2)) and ((x-7)). Their product gives \(x^2-9x+14=0\).
Why this answer is correct
The correct answer is A. \(x^2-9x+14=0\). If the roots are (2) and (7), the factors are ((x-2)) and ((x-7)). Their product gives \(x^2-9x+14=0\).
Exam Tip
मूल (2) और (7) हों तो गुणनखंड ((x-2)) और ((x-7)) होंगे। इनका गुणन \(x^2-9x+14=0\) देता है।
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