Предмет: Алгебра, автор: aneliailina20000

пожалуйста помогите срочно

Приложения:

Ответы

Автор ответа: pomogatel21

0

Ответ:

t1 = 7 1/2
t2 = -7 1/2

c = -1/5

Объяснение:

Корни одинаковые если Дискриминант = 0

D = 4 + 20(-с) = 0

20(-с) = 4
-с = 4/20

с = -1/5

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