Знайти суму цілих розв’язків нерівності -2х2+7х-5 ≥0. Пожалуйста, помогите!. Created by mikakireev2005. algebra-ru

Пошаговое решение и ответ:-2х^2+7х-5 ≥0 7х в виде 2 суммы : 5х + 2х-2х^2+5х+2х > 0-х×(2х-5)+2х-5 > 0(2х-5) × (-х+1) > 0{ 2х - 5 > 0 { х > 5/2{ -х + 1 > 0 => { х < 1 => Х € ○/{2х - 5 < 0 { х < 5/2{ -х + 1 < 0 => { х > 1 =>Х € [ 1 5/2] Тут х в квадрате, спасібо за решение. Но х в квадрате Поняла, сейчас исправлю ответ ;) Все, надеюсь помогла ^^ Да помогла, спасибо!) Не зачто •^• Реклама Реклама Новые вопросы в Алгебра Решите уравнение: 2sinx=корень из 2 ПОЖАЛУЙСТА СРОЧНО!!! Если х1 и х2 корни уравнения х2-3х-3=0, то (х1+х2)х1•х2 Освободитесь от иррациональности: х2-9х-3 Решите систему ур-й 2x-3y=1 3x+y=7 розв'язати рівняння: x2+3x=4x+5 Помогите решить пжржпжжпжпжпжп Решите пожалуйста 4 задачи по алгебре, по фотке, даю 30 баллов. Зарание большое спасибо) разложите на 2x^2-3x-2= ab+b2 ___ ab2 Это дробь надо сократить (-0,7)³ жауабы бар ма Предыдущий Следующий Реклама - это не так уж плохо Реклама - это не так уж плохо Понимаем - вы пришли сюда не за рекламой. 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