एक दृश्य मॉडल में \(x^2-49\) को आयत में बदलना है। कौन सी कटाई सबसे उपयोगी होगी?
A visual model must rearrange \(x^2-49\) into a rectangle. Which cut is most useful?
Explanation opens after your attempt
A. भुजा (7) वाला वर्ग हटानाRemoving a square of side (7)
Concept
Since \(49=7^2\), a square of side (7) is removed. Exam tip: identify the square root of the constant square.
Why this answer is correct
The correct answer is A. भुजा (7) वाला वर्ग हटाना / Removing a square of side (7). Since \(49=7^2\), a square of side (7) is removed. Exam tip: identify the square root of the constant square.
Exam Tip
\(49=7^2\) है इसलिए भुजा (7) का वर्ग हटता है। परीक्षा में स्थिर वर्ग का वर्गमूल पहचानें।
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