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Factorise (x^2-2xy+y^2-z^2).(x^2-2xy+y^2-z^2) को गुणनखंडित करें।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((x-y-z)(x-y+z))सही रूप
First (x^2-2xy+y^2=(x-y)^2), then apply difference of squares. In exams group first and apply the identity.पहले (x^2-2xy+y^2=(x-y)^2), फिर वर्गों का अंतर लगाएं। परीक्षा में पहले समूह बनाकर पहचान लगाएं।
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