Предмет: Алгебра, автор: Аноним

 -\frac{4}{11} x^2+11=0

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Автор ответа: snoardekap4fn1c
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-4/11 * x^2 +11 = 0;
-4/11 * x^2 = -11; Домножаем на 11;

-4*x^2 = -121; Домножаем на -1;
4*x^2 = 121; Делим на 4;
x^2 = 121/4;

x = ± sqrt (121/4);

x = 
±11/2;
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