(1) x<x+2x < \sqrt{x+2}x<x+2 (2) x<6−x\sqrt{x} < 6-xx<6−x (3) 5−x>x−3\sqrt{5-x} > x-35−x>x−3 (4) 2x+1<1−x\sqrt{2x+1} < 1-x2x+1<1−x