благопр-4события, возможных -36
вер-ть 4/36=1/9
2x^3 - 11x^2 + 17x - 6 = 2x^3 - 4x^2 - 7x^2 + 14x + 3x - 6 =
= 2x^2 * (x - 2) - 7x * (x - 2) + 3 * (x - 2) =
= (x - 2) * (2x^2 - 7x + 3) = (x - 2) * (x - 3) * (2x - 1) = 0
x1 = 2
x2 = 3
x3 = 0,5
Среднее арифметическое = (2 + 3 + 0,5) / 3 = 11/6
36x²-4y³+4y²+24xy-108x³+12x+4y
4(9x^2-y^3+y^2+6xy-27x^3+3x+y)
11x+7x-24=42
-6x=42
x=42/-6
x=-7