a4+4 এর উৎপাদক কী কী ?

  • (a2-2a+2)(a2-2a-2)
  • (a2+2a+2)(a2-2a+2)
  • (a2+2a-2)(a2-2a+2)
  • (a2+2a+2)(a2+2a+2)

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