यदि \(x=2+\sqrt{6}\) है, तो \(x^2-4x\) का मान क्या है?

If \(x=2+\sqrt{6}\), what is the value of \(x^2-4x\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (-2)

Step 1

Concept

\(x^2=10+4\sqrt{6}\) and \(4x=8+4\sqrt{6}\). Subtracting gives (2).

Step 2

Why this answer is correct

The correct answer is B. (-2). \(x^2=10+4\sqrt{6}\) and \(4x=8+4\sqrt{6}\). Subtracting gives (2).

Step 3

Exam Tip

\(x^2=10+4\sqrt{6}\) और \(4x=8+4\sqrt{6}\) है। घटाने पर (2) नहीं, बल्कि (2) मिलता है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(x=2+\sqrt{6}\) है, तो \(x^2-4x\) का मान क्या है? / If \(x=2+\sqrt{6}\), what is the value of \(x^2-4x\)?

Correct Answer: B. (-2). Explanation: \(x^2=10+4\sqrt{6}\) और \(4x=8+4\sqrt{6}\) है। घटाने पर (2) नहीं, बल्कि (2) मिलता है। / \(x^2=10+4\sqrt{6}\) and \(4x=8+4\sqrt{6}\). Subtracting gives (2).

Which concept should I revise for this Mathematics MCQ?

\(x^2=10+4\sqrt{6}\) and \(4x=8+4\sqrt{6}\). Subtracting gives (2).

What exam hint can help solve this Mathematics question?

\(x^2=10+4\sqrt{6}\) और \(4x=8+4\sqrt{6}\) है। घटाने पर (2) नहीं, बल्कि (2) मिलता है।