\(x^2-2x+1\) किस पूर्ण वर्ग के बराबर है?
Which perfect square is equal to \(x^2-2x+1\)?
Explanation opens after your attempt
B. ( (x-1)2 )
Concept
It is in the form \(x^2-2\cdot x\cdot1+1^2\). Exam tip: in ((a-b)2), the middle term is negative.
Why this answer is correct
The correct answer is B. ( (x-1)2 ). It is in the form \(x^2-2\cdot x\cdot1+1^2\). Exam tip: in ((a-b)2), the middle term is negative.
Exam Tip
यह \(x^2-2\cdot x\cdot1+1^2\) के रूप में है। परीक्षा में ((a-b)2) में मध्य पद ऋणात्मक होता है।
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