Easy Mathematics Quadratic Equations Class 10 Level 31

समीकरण \(x^2+6x+9=0\) के मूल कौन से हैं?

What are the roots of \(x^2+6x+9=0\)?

Explanation opens after your attempt
Correct Answer

B. (-3) और (-3)(-3) and (-3)

Step 1

Concept

(x-2+6x+9=(x+3)2) so both roots are (-3). In a perfect square the root sign is opposite.

Step 2

Why this answer is correct

The correct answer is B. (-3) और (-3) / (-3) and (-3). (x-2+6x+9=(x+3)2) so both roots are (-3). In a perfect square the root sign is opposite.

Step 3

Exam Tip

(x-2+6x+9=(x+3)2) इसलिए दोनों मूल (-3) हैं। पूर्ण वर्ग में मूल का चिन्ह उल्टा होता है।

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Mathematics Answer, Explanation and Revision Hints

समीकरण \(x^2+6x+9=0\) के मूल कौन से हैं? / What are the roots of \(x^2+6x+9=0\)?

Correct Answer: B. (-3) और (-3) / (-3) and (-3). Explanation: (x-2+6x+9=(x+3)2) इसलिए दोनों मूल (-3) हैं। पूर्ण वर्ग में मूल का चिन्ह उल्टा होता है। / (x-2+6x+9=(x+3)2) so both roots are (-3). In a perfect square the root sign is opposite.

Which concept should I revise for this Mathematics MCQ?

(x-2+6x+9=(x+3)2) so both roots are (-3). In a perfect square the root sign is opposite.

What exam hint can help solve this Mathematics question?

(x-2+6x+9=(x+3)2) इसलिए दोनों मूल (-3) हैं। पूर्ण वर्ग में मूल का चिन्ह उल्टा होता है।

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