भुजा (k-4) वाले वर्ग का क्षेत्रफल मॉडल कौन सा विस्तार देता है?
Which expansion is given by the area model of a square with side (k-4)?
Explanation opens after your attempt
C. \(k^2-8k+16\)
Concept
((k-4)2=k-2-8k+16). Exam tip: keep the middle term negative in a subtraction square.
Why this answer is correct
The correct answer is C. \(k^2-8k+16\). ((k-4)2=k-2-8k+16). Exam tip: keep the middle term negative in a subtraction square.
Exam Tip
((k-4)2=k-2-8k+16) होता है। परीक्षा में घटाव वाले वर्ग में बीच का पद ऋणात्मक रखें।
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