х принадлежит от (-3 до 3.)
Пошаговое объяснение:
x²-9<0
x²<9
√x²<√9
|x|<3
1) you can’t live without doing such stupid things.
2) try to avoid being in bad mood.
3) if you want to lose your weight stop eating a lot.
4) i don’t like being late for work.
5) he tried to calm her down promising to return soon.
6) in arabic countries this is a common way of camels’ moving.
7) he is not good at driving.
8) i don’t feel like doing shopping.
x^2-9<0
x^2<9
x<±3
___oo___
-3 3
ответ: (-3;3)