दृश्य मॉडल में \(x^2-8x+16\) को पूर्ण वर्ग दिखाने के लिए किस भुजा का वर्ग बनाया जाएगा?
To show \(x^2-8x+16\) as a perfect square in a visual model, a square of which side will be made?
Explanation opens after your attempt
B. (x-4)
Concept
\(16=4^2\) and \(-8x=-2\cdot4x\), so the side is (x-4). Exam tip: read the negative middle term as a subtraction model.
Why this answer is correct
The correct answer is B. (x-4). \(16=4^2\) and \(-8x=-2\cdot4x\), so the side is (x-4). Exam tip: read the negative middle term as a subtraction model.
Exam Tip
\(16=4^2\) और \(-8x=-2\cdot4x\) है इसलिए भुजा (x-4) है। परीक्षा में ऋण मध्य पद को घटाव वाला मॉडल समझें।
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