Question

Equação de segundo grau completa


$x^{2} +3x+2=0$

Answer 1

$\text{Bhaskara}\rightarrow x=\dfrac{-3\pm \sqrt{3^{2}-4.1.2}}{2.1}\rightarrow \\ x=\dfrac{-3\pm \sqrt{9-8}}{2}\rightarrow \\ x= \dfrac{-3\pm 1}{2}\rightarrow x= -2 \,\, \text{ou}\,\, x= -1.$