Medium Mathematics Quadratic Equations Class 10 Level 30

यदि \(x^2+vx+28=0\) के मूल (-4) और (-7) हैं, तो (v) का मान क्या है?

If the roots of \(x^2+vx+28=0\) are (-4) and (-7), what is the value of (v)?

Explanation opens after your attempt
Correct Answer

A. (11)

Step 1

Concept

The sum of roots is (-11), and in \(x^2+vx+28=0\), the sum is (-v). Therefore (v=11).

Step 2

Why this answer is correct

The correct answer is A. (11). The sum of roots is (-11), and in \(x^2+vx+28=0\), the sum is (-v). Therefore (v=11).

Step 3

Exam Tip

मूलों का योग (-11) है और \(x^2+vx+28=0\) में योग (-v) होता है। इसलिए (v=11) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(x^2+vx+28=0\) के मूल (-4) और (-7) हैं, तो (v) का मान क्या है? / If the roots of \(x^2+vx+28=0\) are (-4) and (-7), what is the value of (v)?

Correct Answer: A. (11). Explanation: मूलों का योग (-11) है और \(x^2+vx+28=0\) में योग (-v) होता है। इसलिए (v=11) है। / The sum of roots is (-11), and in \(x^2+vx+28=0\), the sum is (-v). Therefore (v=11).

Which concept should I revise for this Mathematics MCQ?

The sum of roots is (-11), and in \(x^2+vx+28=0\), the sum is (-v). Therefore (v=11).

What exam hint can help solve this Mathematics question?

मूलों का योग (-11) है और \(x^2+vx+28=0\) में योग (-v) होता है। इसलिए (v=11) है।

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