Предмет: Алгебра, автор: angelinaaaaaaa2

Знайдіть корені квадратного тричлена x^2+3x-15

Ответы

Автор ответа: anuapolina08

5

Розв'язок завдання на фото

Приложения:

Автор ответа: sabziro98

2

Ответ:

D=b^2-4*a*c

=9-4*1*(-15)=69

x1=-9-8,3/2=-8,65

x2=-9+8,3/2=-0,35

Объяснение:

через дискримінант

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