Question

система : x^3 + y^3 = 1 ; x+ y = 1

Answer 1

x³+y³=1

x+y=1

 

x³+y³=1

x=1-y

 

(1-y)³+y³=1

1-3y+3y²-y³+y³=1

3y²-3y=0

3y(y-1)=0

y=0 ∨ y=1

 

x=1-0 ∨ x=1-1

x=1 ∨ x=0

 

(1,0),(0,1)