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If (x^2+mx+16) is a perfect square and (m) is negative, what is (m)?यदि (x^2+mx+16) पूर्ण वर्ग है और (m) ऋणात्मक है, तो (m) क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-8)(-8)
(16=4^2), and the negative middle term is (-2\cdot x\cdot4=-8x). In exams, choose the coefficient according to the given sign.(16=4^2) है और ऋणात्मक मध्य पद (-2\cdot x\cdot4=-8x) होगा। परीक्षा में दिए गए चिन्ह के अनुसार गुणांक चुनें।
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