(1)原式×=-1+2 3 -2× 3 2 +1=-1+2 3 - 3 +1= 3 ;(2) x?3(x?2)≥4 ① 1+2x 3 <x+1 ② ,由①得,x≤1,由②得,x>-2,∴原不等式组的解集是-2<x≤1,如图: