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Larh1
@Larh1
January 2020
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Resolva as equações de 2 grau:
a)4x²+40=0
b)9x²=18
c)x²=144
d)2x²-3=0
e)7x²-x=0
f)-5x²-10x=0
g)4x²=8x
h)x²-x=0
i)x.(x-3)-2.(x-3)=6
j)x²+(x-6)=0
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AndrewsVN
Fiz essas questões usando a fórmula de bhaskara
a) Delta negativo , Não admite raízes reais
b) X = (25,4 e -25,4)
c) X = ( 12 e -12)
d) X= ∆=24 ai VC faz bhaskara pra saber os X
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a) Delta negativo , Não admite raízes reais
b) X = (25,4 e -25,4)
c) X = ( 12 e -12)
d) X= ∆=24 ai VC faz bhaskara pra saber os X