Question

Помогите решите этот модуль,побыстрее пож.

Answer 1

1)|x-2| < 4
$left { {x-2 textless {4} atop {x-2 textless {-4} right.$
$left { {{x textless 6} atop {x textless -2}} right.$
x = (-2; 6)
2)|x+7| < 5
$left { {{x+7 textless 5} atop {x+7 textless -5}} right.$
$left { {{x textless -2} atop {x textless -12}} right.$
x = (-12; -2)
3) |x+8| < 1
$left { {{x+8 textless 1} atop {x+8 textless -1}} right.$
$left { {{x textless -7} atop {x textless -9}} right.$
x = (-9; -7)
4) |2x - 4|> 2
$left { {{2x-4 textgreater 2} atop {2x-4 textgreater -2}} right.$
$left { {{2x textgreater 6} atop {2x textgreater 2}} right.$
$left { {{x textgreater 3} atop {x textgreater 1}} right.$
x = (1; 3)