Question

x^5+x^4-6x^3-x^2-x+6=0

Answer 1

х³(х²+х-6)-(х²+х-6)=0
(х³-1)(х²+х-6)=0
((х-1)(х²+х+1)(х-2)(х+3)=0
х=1, х=2, х=-3