Предмет: Алгебра, автор: lizabolonkina

x² - 4=0
решите уравнение

Ответы

Автор ответа: Аноним

2

$x^{2} -4=0; (x-2)(x+2)=0$

х=2 или х=-2

Ответ:2;-2

lizabolonkina: спасибо

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