RB3 RB3
  • 15-12-2016
  • Mathematics
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Factor completely y^4+18y^2+81

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Аноним Аноним
  • 15-12-2016
 y^4+18y^2+81
=(y^2 + 9)(y^2 + 9)
=(y^2 + 9)^2
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