Предмет: Алгебра, автор: Поэтесса29

Помогите пожалуйста решить уравнение:
x2(в квадрате)+8x+4=0

Ответы

Автор ответа: Аноним
0
Х^2 + 8х + 4 = 0
D = 64 - 14 = 50 = 5 V 2
X1 = ( - 8 + 5 V 2 ) : 2 = - 4 + 2,5 V 2
X2 = - 4 - 2,5 V 2
Знак V это корень квадратный
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