यदि \(y^2-14y+49\) का दृश्य वर्ग मॉडल बने, तो हटाई गई प्रत्येक पट्टी का क्षेत्रफल क्या होगा?
If \(y^2-14y+49\) is shown as a visual square model, what is the area of each removed strip?
Explanation opens after your attempt
D. (7y)
Concept
The total removed strips are (14y), so each is (7y). In exams, divide the middle term into two equal parts.
Why this answer is correct
The correct answer is D. (7y). The total removed strips are (14y), so each is (7y). In exams, divide the middle term into two equal parts.
Exam Tip
कुल हटाई गई पट्टियाँ (14y) हैं, इसलिए प्रत्येक (7y) है। परीक्षा में कुल मध्य पद को दो बराबर भागों में बाँटें।
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