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Choose the factorised form of (5y^2-19y+12).(5y^2-19y+12) का गुणनखंड रूप चुनिए।
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ((5y-3)(y-4))((5y-3)(y-4))
Expanding ((5y-3)(y-4)) gives (5y^2-23y+12), so it is not correct. The correct option is ((5y-4)(y-3)).((5y-3)(y-4)) से (5y^2-20y-3y+12) नहीं बल्कि (5y^2-23y+12) आता है इसलिए यह गलत लगता है। सही विकल्प ((5y-4)(y-3)) है।
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