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difference_of_roots MCQ Questions for Class 10

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32 questions tagged with difference_of_roots.

Question 31/32 Medium Mathematics Quadratic Equations Roots of a Quadratic Equation Class 10 Level 32

समीकरण \(x^2-6x-7=0\) के मूलों का अंतर कितना है?

What is the difference between the roots of \(x^2-6x-7=0\)?

Explanation opens after your attempt
Correct Answer

A. (8)

Step 1

Concept

(x-2-6x-7=(x-7)(x+1)). The roots are (7) and (-1), so the difference is (8).

Step 2

Why this answer is correct

The correct answer is A. (8). (x-2-6x-7=(x-7)(x+1)). The roots are (7) and (-1), so the difference is (8).

Step 3

Exam Tip

(x-2-6x-7=(x-7)(x+1)) है। मूल (7) और (-1) हैं इसलिए अंतर (8) है।

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Question 32/32 Medium Mathematics Quadratic Equations Roots of a Quadratic Equation Class 10 Level 31

समीकरण \(x^2-4x-5=0\) के मूलों का अंतर कितना है?

What is the difference between the roots of \(x^2-4x-5=0\)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

(x-2-4x-5=(x-5)(x+1)). The roots are (5) and (-1), so the difference is (6).

Step 2

Why this answer is correct

The correct answer is A. (6). (x-2-4x-5=(x-5)(x+1)). The roots are (5) and (-1), so the difference is (6).

Step 3

Exam Tip

(x-2-4x-5=(x-5)(x+1)) है। मूल (5) और (-1) हैं इसलिए अंतर (6) है।

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