Question

Calcule as raízes da equação x²+5x+6=0

Answer 1

a=1
b=5
c=6
delta=b²-4xaxc
5²-4x1x6
25-24
1
X=-b+raiz de delta / 2 x a
X= -5+ raiz de 1 / 2 x 1
X= -5 + 1 / 2
X=-4/2
X=-2

X=-b-raiz de delta / 2 x a
X= -5- raiz de 1 / 2 x 1
X=-5-1/2
X=-6/2
X=-3