\(x^2-2xy+y^2-z^2\) को गुणनखंडित करने का सही रूप कौन सा है?
Which is the correct factorised form of \(x^2-2xy+y^2-z^2\)?
Explanation opens after your attempt
A. ((x-y-z)(x-y+z))
Concept
First (x-2-2xy+y-2=(x-y)2), then use difference of squares. Exam tip: form the perfect square first.
Why this answer is correct
The correct answer is A. ((x-y-z)(x-y+z)). First (x-2-2xy+y-2=(x-y)2), then use difference of squares. Exam tip: form the perfect square first.
Exam Tip
पहले (x-2-2xy+y-2=(x-y)2), फिर अंतर के वर्ग लगाएं। परीक्षा में पहले पूर्ण वर्ग बनाएं।
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