(5х+1/2х-3)2+(3-2х/5х+1)2=82/9

(11/2х-3)*2+(3-2/5+1)*2=82/911х-6+(4-2/5)*2=82/911х-6+18/5*2=82/911х-6+36/5=82/911х+6/5=82/911х=82/9-6/511х=356/45х=356/495