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olisykes3
@olisykes3
June 2021
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mymurkin
найдем нули функции
x=0
x= - 14.4
решаем методом интервалов и получим
Ответ: ( - ∞; - 14,4] [0; + ∞)
1 votes
Thanks 1
mukus13
Verified answer
(2х+9/3+(12-х)/4)(2х+9/3-(12-х)/4)≥0
(8х+36+36-3х/12)(8х+36-36+3х/12)≥0 домножим на 144
(5х+72)(11х)≥0
х(5х+72)≥0
х=0 х=-14,4
_____+_______-__________+_____
-14,4 0
(-∞;-14,4]∨[0;+∞)
2 votes
Thanks 0
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Answers & Comments
найдем нули функции
x=0
x= - 14.4
решаем методом интервалов и получим
Ответ: ( - ∞; - 14,4] [0; + ∞)
Verified answer
(2х+9/3+(12-х)/4)(2х+9/3-(12-х)/4)≥0(8х+36+36-3х/12)(8х+36-36+3х/12)≥0 домножим на 144
(5х+72)(11х)≥0
х(5х+72)≥0
х=0 х=-14,4
_____+_______-__________+_____
-14,4 0
(-∞;-14,4]∨[0;+∞)