решите уравнение:
х(х^2-2)=х^3+8
(х+7)(х-7)-(х-3)^2=53
7х^2=(2х+1)^2+3х^2-5
(х+3)(х-2)-(х-3)(х+2)-5=6х-7
х^3+2х^2-9х-18=0
х(х^2-2)=х^3+8
(х+7)(х-7)-(х-3)^2=53
7х^2=(2х+1)^2+3х^2-5
(х+3)(х-2)-(х-3)(х+2)-5=6х-7
х^3+2х^2-9х-18=0
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