Question

y= -x²- 2x - 1 qual o resultado?

Answer 1

y = - x²- 2x - 1

Δ = b² - 4ac
Δ = (-2)² - 4(-1)(-1)
Δ = 4 - 4
Δ = 0

x = (- b ±√Δ)/2a
x = (- (-2) )/2(-1)
x = 2/(-2)
x = - 1