Question

РЕШИТЕ ПЛЕЗ: x^3-5x^2-x+5=0

Answer 1

x^2*(x-5)-(x-5)=0
(x-5)*(x^2-1)=0
x-5=0
x^2-1=0
x1=5
x2=1
x3=-1

Answer 2

х²(х-5)-(1*(х-5)=0
(х²-1)(х-5)=0
(х-1)(х+1)(х-5)=0
х=1 или х=-1 или х=5