x^3+x^2-9x-9=0
х(x^2-9х)+(x^2-9)=0
(х+1)(х^-9)=0
Пишем совокупность
х+1=0 х=-1
х^2-9=0 х=3
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x^3+x^2-9x-9=0
х(x^2-9х)+(x^2-9)=0
(х+1)(х^-9)=0
Пишем совокупность
х+1=0 х=-1
х^2-9=0 х=3
B) {-1;3;1/3}
C) {1;-3;1/3}
D) {1;3;-3}
E) {1;-3;-1/3}