Предмет: Алгебра, автор: Guka100

x^2-2(a+2)x+12+a^2=0 Найдите наименьшее целое значение a, при котором уравнение имеет два различных корня.

Ответы

Автор ответа: Artem112

D1=(a+2)^2-a^2-12=a^2+4a+4-a^2-12=4a+4-12=4a-8>0

4a>8

a>2

наибольшее целое, попадающее в промежуток - число 3

Ответ: 3

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