Question

Решите уравнение:
y^3-2y^2=y-2

Answer 1

y^3-2y^2-y-2=0
y(y^2-y)-2(y^2-1)=0
(y-2)(y-1)(y+1)=0
y-2=0
y-1=0
y+1=0
y=1
y=2
y=-1