Question

Se a= 1, b=-3 e c = -4

Answer 1

Resposta:

x= -2

Explicação:

$x= \frac{-3-\sqrt{3^{2}-4.1.4 } }{2.1}$

$x=\frac{-3-\sqrt{9-16} }{2}$

$x=\frac{-3-3-4}{2}$

$x=\frac{-3-1}{2}$

$x=\frac{-4}{2}$

$x=-2$