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25x^4-20x^2+4=0

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25x^4-20x^2+4=0
  • 1 answers

Paulo Dybala 6 years, 10 months ago

25x^4 - 20x^2 + 4=0 25x^4 - 10x^2 - 10x^2 +4 =0 5x^2(5x^2 - 2) - 2(5x^2 - 2) = 0 (5x^2 -2 ) , (5x^2 - 2 ) = 0 x^2 = 2/5 , x^2 = 2/5 x = √2/5 ,. x= √2/5
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