Question

Determine as raizes da equação x2+5×+6

Answer 1

X = - 5 +-V5^2 - 4 • 1 • 6/2 • 1
X = - 5 +-V25 - 24/2

X1 = - 5 - 1/2
X1 = - 6/2
X1 = - 3

X2 = - 5 + 1/2
X2 = - 4/2
X2 = - 2

S = {- 3, - 2}