Автор - 89043650178skok

4класс решить уравнения b*b+9=34 и (y-3)*(4-y)=0

Ответ

Автор - coolleyla
b*b+9 = 34
b² = 34-9
b² = 25
b = +-5

(y-3)(4-y)=0
y-3 = 0   y = 3
4-y = 0   y = 4

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