Question

解一个一元三次方程m^2(m+1)(1-m^2)=0

Answer 1

m^2(m+1)(1-m^2)=0

m^2=0

m+1=0

1-m^2=0

m=0

m=-1

m^2=1

m=-1 ,1

综上

m=-1 ,0 ,1