Предмет: Математика, автор: kori200589

f(x)=7-6x-x^2
Исследовать функцию на монотонность

Ответы

Автор ответа: vsemprivet555
0

Пошаговое объяснение:

7 – 6х – х² = 0

–х² – 6х + 7 = 0

х * (х + 7) – (х + 7) = 0

х + 7 = 0

х – 1 = 0

х1 = –7

х2 = 1

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