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What is obtained by simplifying ( (3a+b+c)^2-(9a^2+b^2+c^2) )?( (3a+b+c)^2-(9a^2+b^2+c^2) ) को सरल करने पर क्या मिलेगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (6ab+6ac+2bc)सही रूप
The pair terms in the square are (6ab), (6ac), and (2bc). Exam tip: take the double product of every pair.तीन पदों के वर्ग में जोड़ी पद (6ab), (6ac), और (2bc) आते हैं। परीक्षा में हर जोड़ी का दोहरा गुणन करें।
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