(x+11+ 6(x+2)1/2)1/2+((x+11-6(x+2)1/2)1/2=x+2

(х+11+6х+12)1/2)1/2+((х+11-6х-12)1/2)1/2=х+2((7х+23)1/2)/2+((-5х-1)1/2)1/2=х+2(7х+23)1/2+(-5х-1)1/2=2х+47х+23-5х-1=4х+82х+22=4х+822-8=4х-2х2х=14х=7