Ответ:
y(y²-1)-5y(y²+9)=8-4y³-30y²
y³-y-5y³-45y=8-4y³-30y²
30y²-46y=8
15y²-23y=4
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Ответ:
y(y²-1)-5y(y²+9)=8-4y³-30y²
y³-y-5y³-45y=8-4y³-30y²
30y²-46y=8
15y²-23y=4