Question

equaçao de 2 grau
3x2+5x=-x-9+2x2

Answer 1

$3x^{2}+5x=-x-9+2x^{2}$
$3x^{2}-2x^{2}+5x+x+9=0$
$x^{2}+6x+9=0$
$S=\frac{-b}{a}$
$S=\frac{-6}{1}$
$s=-6$
$P=\frac{c}{a}$
$P=\frac{9}{1}$
$P=9$
$x_{1}=x_{2}=-3$