Предмет: Алгебра, автор: sanya1995gorvat

решить неравенство

x^2 + 2x - меньше 0

Ответы

Автор ответа: Quintessence

0

х²+2х<0;

x(x+2)<0;

x=0; x=-2;

x∈(-2;0).

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