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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