x-x^3=0
х(1-x^2)=0
x(1-x)(1+x)=0
x=0 x= 1 x= -1
x^4-x^2=0
x^2(x^2-1)=0
x^2(x-1)(x+1)=0
x= 0 x= 1 x =-1
х(1-х)=0
х=0 или 1-х^2=0
x^2-1=0
x^2=1
x=1
x^2=0 или x^2-1=0
x=1 (x-1)(x+1)=0
x-1=0 x+1=0
x=1 x=-1
x-x^3=0
х(1-x^2)=0
x(1-x)(1+x)=0
x=0 x= 1 x= -1
x^4-x^2=0
x^2(x^2-1)=0
x^2(x-1)(x+1)=0
x= 0 x= 1 x =-1
x-x^3=0
х(1-х)=0
х=0 или 1-х^2=0
x^2-1=0
x^2=1
x=1
x^4-x^2=0
x^2(x^2-1)=0
x^2=0 или x^2-1=0
x=1 (x-1)(x+1)=0
x-1=0 x+1=0
x=1 x=-1