1,x=√6 2,﹙x+1﹚�0�5=144----x+1=12或-12-------x=11或-13 3,﹙x+3﹚﹙x+9﹚=0-------x=-3或x=-9
1、x1=根号62,x2=-根号622x1=-13,x2=113x1=-3,x2=-9