(√3х+4)²=(√х-3 +3)²
3х+4=х-3+2*3√х-3 +9
3х+4=х+6+6√х-3
2х-2=6√х-3 (:2)
х-1=3√х-3
(х-1)²=(3√х-3)²
х²-2х+1=9(х-3)
х²-11х+28=0
х1+х2=11
х1*х2=28
х1=7
х2=4
(√5х+2 -2)²=(√5х-10)²
5х+2-4√5х+2 +4 =5х-10
16=4√5х+2 (:4)
4=√5х+2
(4)²=(√5х+2) 16=5х+2 14=5х х=14/5 х=2,8