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  • 25-11-2020
  • Mathematics
contestada

solve the quadratic equation 3x²+x-4=0

Respuesta :

xenia168
xenia168 xenia168
  • 25-11-2020

Answer:

{ - [tex]\frac{4}{3}[/tex] , 1 }

Step-by-step explanation:

3x² + x - 4 = 0

D = 1² - 4(3)(- 4) = 49 = 7²

[tex]x_{1}[/tex] = ( - 1 + 7) ÷ 2(3) = 1

[tex]x_{2}[/tex] = ( - 1 - 7) ÷ 2(3) = - [tex]\frac{4}{3}[/tex]

{ - [tex]\frac{4}{3}[/tex] , 1 }

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