1) 3-2 (u-1)> 8+u 3-2u+2> 8-u -2u+u> 8-3-2 -3u>3 u <1
3-2 (u-1)> 8+u3-2u+2>8+u -2u-u>8-3-2 -3u>3 u<-1<br>Ответ. u∈(-∞;-1)