Medium Mathematics Quadratic Equations Class 10 Level 31

यदि \(x^2+ax+9=0\) के मूल (3) और (3) हैं तो (a) का मान क्या है?

If the roots of \(x^2+ax+9=0\) are (3) and (3), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

A. (-6)

Step 1

Concept

The sum of roots is (6), and (-a=6). Therefore (a=-6).

Step 2

Why this answer is correct

The correct answer is A. (-6). The sum of roots is (6), and (-a=6). Therefore (a=-6).

Step 3

Exam Tip

मूलों का योग (6) है और (-a=6) होगा। इसलिए (a=-6) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(x^2+ax+9=0\) के मूल (3) और (3) हैं तो (a) का मान क्या है? / If the roots of \(x^2+ax+9=0\) are (3) and (3), what is the value of (a)?

Correct Answer: A. (-6). Explanation: मूलों का योग (6) है और (-a=6) होगा। इसलिए (a=-6) है। / The sum of roots is (6), and (-a=6). Therefore (a=-6).

Which concept should I revise for this Mathematics MCQ?

The sum of roots is (6), and (-a=6). Therefore (a=-6).

What exam hint can help solve this Mathematics question?

मूलों का योग (6) है और (-a=6) होगा। इसलिए (a=-6) है।

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