x² – 5x + 6 = 0
D = 5² – 4·6 = 1
x₁ = (5 – 1) / 2 = 2
x₂ = (5 + 1) / 2 = 3
x² – 5x + 6 < 0 ⇒ x ∈ (2; 3)
ответ: x ∈ (2; 3).
x² – 5x + 6 = 0
D = 5² – 4·6 = 1
x₁ = (5 – 1) / 2 = 2
x₂ = (5 + 1) / 2 = 3
x² – 5x + 6 < 0 ⇒ x ∈ (2; 3)
ответ: x ∈ (2; 3).