... trinh co 2 nghiem bang nhau X= ',-b/2*a:6:2) Else Begin x1:=(-b-sqrt(delta))/2*a; x2:=(-b+sqrt(delta))/2*a; Writeln('*Nghiem thu nhat X1= ',x1:6:2); Writeln('*Nghiem thu ... ');GIAO TRINH LY THUYET VA BAI TAP TURBO PASCAL-CHUONG 1 Dang Thanh Tuan (15 /3/2004)********** 010 1**********Program PTB2;Vara,b,c:Integer; delta,x1,x2:Real;BeginWriteln('GIAI PHUONG TRINH ... KHUYEN');ReadlnEnd.********** 010 3**********Program So_hoc;Varso1,so2,tong,hieu,tich:Integer; thuong:Real;BeginWrite('-Nhap so thu nhat = '); Readln(so1); Write('-Nhap so thu hai =...