Respostas

  • Usuário do Brainly
2014-08-31T22:22:05-03:00
X(3x+4)=-1

3 x^{2} +4x+1=0

a=3
b=4
c=1
Δ=b²-4ac
Δ=16-12
Δ=4
√Δ=√4
√4=±2

x=(-b ±√Δ)/2a

x'= \frac{-4+2}{6} =- \frac{2}{6} =- \frac{1}{3}

x"= \frac{-4-2}{6} =- \frac{6}{6} =-1

S={-1/3,-1}


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