1) 36/300 и 17/300
2)25/60, 3/60 и 17/60
3)66/180, 19/180 и 12/180
X^3 + 6x^2 = 9x + 54
x^3 + 6x^2 - 9x - 54 = 0
x^2(x+6) - 9(x + 6) = 0
(x+6)(x^2 - 9) = 0
(x + 6)(x - 3)(x+3) = 0
x_1 = -6
x_2 = 3
x_3 = -3
5 - 3 2/11= 5 - 35/11= 55/11-35/11=20/11= 1 и 9/11