Предмет: Алгебра, автор: bertain

100 б. Пользуясь графиком, найти:
1) произведение всех корней уравнения f(x)=2
2) количество всех ЦЕЛЫХ решений неравенства f(x)≥2

Приложения:

Ответы

Автор ответа: matilda17562
1
Решение:
1) f(x) = 2 при x= - 3, х =2,  х = 5, х = 7.
- 3·2·5·7 = - 210.
2)  f(x) ≥ 2 при х = -3, х = - 2, х = - 1,  х = 0,  х =1, х = 2, х = 3, х = 4, х = 5, х = 7
таких значений 10. 
Ответ: 1) -210; 2) 10.

matilda17562: Если нужны более подробные пояснения полученного результата, буду рада помочь, пишите.
bertain: А там, где количество решений, разве не 10? У меня такие получились: -3, -2, -1, 0, 1, 2, 3, 4, 5, 7
bertain: Спасибо за ответ!
matilda17562: Я исправила ответ, извините, пожалуйста. Написала ответ для строго неравенства, а в условии больше или равно. Ворона! Простите!
bertain: Всё хорошо) Понимаю вас, у самой такое иногда бывает, к сожалению((
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