Question

помогите решить пожалуста

Answer 1

........,,,,,,,,,,,,,

Answer 2

x=5-y
(5-y)^3 + y^3 = 35
125-3*25*y + 3*5*y^2 - y^3 + y^3 = 35
125 - 75y + 15y^2 = 35
15y^2- 75y + 90 = 0
y^2 - 5y + 6 +0
y1+y2 =5
y1 * y2=6
y1 = 2   y2 = 3
x1= 5-2=3  x2 5-3=2