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1. x3+x2+4x+4=0

  • A. -2i,-1
  • B. -2i,-1
  • C. -2i,-1
  • D. -2i,-1

Answer: Option A

Explanation:

 অপর মূল্টি -i এবং ৩য় মূলα ∴2i-2i+α=-1⇒α=-1 অপর মূলদ্বয় -2i,-1

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