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What will be the factorised form of (a^2-b^2-a+b)?(a^2-b^2-a+b) का गुणनखंड रूप क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((a-b)(a+b-1))((a-b)(a+b-1))
Write it as ((a-b)(a+b)-(a-b)), then take ((a-b)) common. Exam tip: also convert the last two terms into a group.इसे ((a-b)(a+b)-(a-b)) लिखकर ((a-b)) सामान्य लें। परीक्षा में अंतिम दो पदों को भी समूह में बदलें।
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