Question

F(X) = -x² -5x +6

Quais são as raízes?

Answer 1

Δ = 25 - 4.(-1).6
Δ = 49
√Δ = 7

$x_{1} = \frac{5+7}{-2} = -6$

$x_{2} = \frac{5-7}{-2} = 1$

S = {-6,1}