\( 49-r^2 \) को गुणनखंडों में कैसे लिखेंगे?

How will you factorise \( 49-r^2 \)?

Explanation opens after your attempt
Correct Answer

B. ( (7+r)(7-r) )

Step 1

Concept

(49-r-2=72-r-2=(7+r)(7-r)). Exam tip: keep the larger square first.

Step 2

Why this answer is correct

The correct answer is B. ( (7+r)(7-r) ). (49-r-2=72-r-2=(7+r)(7-r)). Exam tip: keep the larger square first.

Step 3

Exam Tip

(49-r-2=72-r-2=(7+r)(7-r)) है। परीक्षा में बड़े वर्ग को पहले रखें।

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Mathematics Answer, Explanation and Revision Hints

\( 49-r^2 \) को गुणनखंडों में कैसे लिखेंगे? / How will you factorise \( 49-r^2 \)?

Correct Answer: B. ( (7+r)(7-r) ). Explanation: (49-r-2=72-r-2=(7+r)(7-r)) है। परीक्षा में बड़े वर्ग को पहले रखें। / (49-r-2=72-r-2=(7+r)(7-r)). Exam tip: keep the larger square first.

Which concept should I revise for this Mathematics MCQ?

(49-r-2=72-r-2=(7+r)(7-r)). Exam tip: keep the larger square first.

What exam hint can help solve this Mathematics question?

(49-r-2=72-r-2=(7+r)(7-r)) है। परीक्षा में बड़े वर्ग को पहले रखें।

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