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Which is the simplified form of ( (2a+b+c)^2-(4a^2+b^2+c^2) )?( (2a+b+c)^2-(4a^2+b^2+c^2) ) का सरल रूप कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (4ab+2bc+4ac)सही रूप
The pair terms in the square are (4ab), (2bc), and (4ac). Exam tip: take the double product of each pair.तीन पदों के वर्ग में जोड़ी पद (4ab), (2bc), और (4ac) आते हैं। परीक्षा में हर जोड़ी का दोहरा गुणन करें।
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