Question

Запишите в виде неравенства с модулем неравенства : 1) х+8>10 и х+8<-10

Answer 1

$left [ {{x+8>10} atop {x+8<-10}} right. ; ; Rightarrow ; ; ; |x+8|>10\\\star ; ; left [ {{x>10-8} atop {x<-10-8}} right. ; ,; left [ {{x>2} atop {x<-18}} right. ; ; star$