(х-4)(х-3)(х-2)(х-1)=24
(х-1)(х-4)(х-3)(х-2)=24
(x² - 5x + 4)(x² - 5x + 6) = 24
x² - 5x = t
(t + 4)(t + 6) = 24
t² + 10t + 24 = 24
t(t + 10) = 0
1. t = 0
x² + 5x = 0
x(x - 5) = 0
x₁ = 0
x₂ = 5
2. t = -10
x² + 5x = -10
x² + 5x + 10 = 0
D = 25 - 40 = -15 < 0
действительных решений нет
ответ 0 * 5 = 0
(х-4)(х-3)(х-2)(х-1)=24
(х-1)(х-4)(х-3)(х-2)=24
(x² - 5x + 4)(x² - 5x + 6) = 24
x² - 5x = t
(t + 4)(t + 6) = 24
t² + 10t + 24 = 24
t(t + 10) = 0
1. t = 0
x² + 5x = 0
x(x - 5) = 0
x₁ = 0
x₂ = 5
2. t = -10
x² + 5x = -10
x² + 5x + 10 = 0
D = 25 - 40 = -15 < 0
действительных решений нет
ответ 0 * 5 = 0