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1. ax2+4x+3=0

  • A. -,43
  • B. -,43
  • C. -,43
  • D. -,43

Answer: Option A

Explanation:

 , ax2+4x+3=0ি      ি b2-4ac=0 , b=4, c=3b2-4ac>042-4×a×3>016-12a>016>12a1612>043>a, , a  43       ি  :-, 43

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