यदि (p(x)=x-2+2x-1) है, तो इसके शून्यक कौन से हैं?

If (p(x)=x-2+2x-1), what are its zeroes?

Explanation opens after your attempt
Correct Answer

A. \(-1+\sqrt{2}\) और \(-1-\sqrt{2}\)\(-1+\sqrt{2}\) and \(-1-\sqrt{2}\)

Step 1

Concept

By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.

Step 2

Why this answer is correct

The correct answer is A. \(-1+\sqrt{2}\) और \(-1-\sqrt{2}\) / \(-1+\sqrt{2}\) and \(-1-\sqrt{2}\). By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.

Step 3

Exam Tip

सूत्र से \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\)। चिह्नों पर विशेष ध्यान दें।

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Mathematics Answer, Explanation and Revision Hints

यदि (p(x)=x-2+2x-1) है, तो इसके शून्यक कौन से हैं? / If (p(x)=x-2+2x-1), what are its zeroes?

Correct Answer: A. \(-1+\sqrt{2}\) और \(-1-\sqrt{2}\) / \(-1+\sqrt{2}\) and \(-1-\sqrt{2}\). Explanation: सूत्र से \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\)। चिह्नों पर विशेष ध्यान दें। / By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.

Which concept should I revise for this Mathematics MCQ?

By the formula, \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\). Pay special attention to signs.

What exam hint can help solve this Mathematics question?

सूत्र से \(x=\frac{-2\pm\sqrt{4+4}}{2}=-1\pm\sqrt{2}\)। चिह्नों पर विशेष ध्यान दें।