Equação de 2o grau. x²/4 - x/3 + 1/9 = 0.... Pergunta de ideia dePowerF

December 2019 1 18 Report

Equação de 2o grau.

x²/4 - x/3 + 1/9 = 0

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hellenn555 Mmc (3,4,9)=2²x3²=36 3-4-9 /2
   3-2-9 /2
      3-1-9/3
      1-1-3/3
      1-1-1/ 1
      36/4=9
     36/3=12
   36/9=4

9x²-12x+4=0
12+-√(-12)²-4.9.4/2.9
12+- √144-144/18
12+- 0/18
12+-0/18= x1=12+0/18 = 12
   x2=12-0/18=12

Logo x1 = x2
S={12}

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