(1)去括号得:10-4x+12≤2x-2,移项合并得:-6x≤-24,解得:x≥4,(2) x+2(x?1)≤4① 1+4x 3 >x?1② ,由①得:x≤2;由②得:x>-4,∴不等式组的解集为-4<x≤-2,