समीकरण \(5x^2-45=0\) के मूल कौन से हैं?

What are the roots of \(5x^2-45=0\)?

Explanation opens after your attempt
Correct Answer

A. (3) और (-3)(3) and (-3)

Step 1

Concept

From \(5x^2-45=0\), we get \(x^2=9\). Therefore \(x=\pm3\).

Step 2

Why this answer is correct

The correct answer is A. (3) और (-3) / (3) and (-3). From \(5x^2-45=0\), we get \(x^2=9\). Therefore \(x=\pm3\).

Step 3

Exam Tip

\(5x^2-45=0\) से \(x^2=9\) मिलता है। इसलिए \(x=\pm3\) है।

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Mathematics Answer, Explanation and Revision Hints

समीकरण \(5x^2-45=0\) के मूल कौन से हैं? / What are the roots of \(5x^2-45=0\)?

Correct Answer: A. (3) और (-3) / (3) and (-3). Explanation: \(5x^2-45=0\) से \(x^2=9\) मिलता है। इसलिए \(x=\pm3\) है। / From \(5x^2-45=0\), we get \(x^2=9\). Therefore \(x=\pm3\).

Which concept should I revise for this Mathematics MCQ?

From \(5x^2-45=0\), we get \(x^2=9\). Therefore \(x=\pm3\).

What exam hint can help solve this Mathematics question?

\(5x^2-45=0\) से \(x^2=9\) मिलता है। इसलिए \(x=\pm3\) है।