Respuesta:
espero que te sirva
Explicación paso a paso:
[tex]x^{2} -3x-4 = 0[/tex]
[tex]x_{1,2} = \frac{-(-3)+\sqrt{(-3)^{2}-4 . 1.(-4) } }{2.1}[/tex]
[tex]x_{1,2} = \frac{-(-3)+5}{2.1}[/tex]
[tex]x_{1} = \frac{-(-3)+5}{2.1} , x_{2} = \frac{-(-3)-5}{2.1}[/tex]
[tex]x_{1} = \frac{-(-3)+5}{2.1} = 4[/tex]
[tex]x_{2} = \frac{-(-3)-5}{2.1}= -1[/tex]
x = 4 , x = -1
bai! :3
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Respuesta:
espero que te sirva
Explicación paso a paso:
[tex]x^{2} -3x-4 = 0[/tex]
[tex]x_{1,2} = \frac{-(-3)+\sqrt{(-3)^{2}-4 . 1.(-4) } }{2.1}[/tex]
[tex]x_{1,2} = \frac{-(-3)+5}{2.1}[/tex]
[tex]x_{1} = \frac{-(-3)+5}{2.1} , x_{2} = \frac{-(-3)-5}{2.1}[/tex]
[tex]x_{1} = \frac{-(-3)+5}{2.1} = 4[/tex]
[tex]x_{2} = \frac{-(-3)-5}{2.1}= -1[/tex]
x = 4 , x = -1
bai! :3