(2х+1.2)(х+1)(0.7-0.21)=0
срочно!!!!!

(2x+1,2)(x+1)(0,7-0,21)=0(2x+6/5)*(x+1)*(7/10-21/100)=0(2x+6/5)*(x+1)=02x+6/5=0 x+1=0X=-3/5 x=-1X1=-3/5 x2=-1