\( x^2-49 \) को गुणनखंड रूप में लिखिए।

Write \( x^2-49 \) in factor form.

Explanation opens after your attempt
Correct Answer

B. ( (x+7)(x-7) )

Step 1

Concept

Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

Step 2

Why this answer is correct

The correct answer is B. ( (x+7)(x-7) ). Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

Step 3

Exam Tip

\(49=7^2\), इसलिए \(x^2-49=x^2-7^2\) है। परीक्षा में वर्ग पहचानना जरूरी है।

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Mathematics Answer, Explanation and Revision Hints

\( x^2-49 \) को गुणनखंड रूप में लिखिए। / Write \( x^2-49 \) in factor form.

Correct Answer: B. ( (x+7)(x-7) ). Explanation: \(49=7^2\), इसलिए \(x^2-49=x^2-7^2\) है। परीक्षा में वर्ग पहचानना जरूरी है। / Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

Which concept should I revise for this Mathematics MCQ?

Since \(49=7^2\), \(x^2-49=x^2-7^2\). Exam tip: identify squares first.

What exam hint can help solve this Mathematics question?

\(49=7^2\), इसलिए \(x^2-49=x^2-7^2\) है। परीक्षा में वर्ग पहचानना जरूरी है।

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