Question

help me plis
(x^2+x)^3-(x^2+x)^2+(x^2+x)=0

Answer 1

x^2+x=y
y^3-y^2+y=0
y(y^2-y+1)=0
y=0
y^2-y+1=0
D=-3<0
x^2+x=0
x(x+1)=0
x=0
x+1=0
x=-1
Ответ: 0; -1