Program BAT_PHUONG_TRINH_BACI;
Uses crt;
Var a,b: real;
Begin
Clrscr;
Writeln('GIAI BAT PHUONG TRINH BAC NHAT: AX + B>=0');
Writeln('----------------------------------------------------------------------');
Write('nhap a=');
readln(a);
Write('nhap b=');
readln(b);
If a<>0 then
If a>0 then
Writeln('Bat phuong trinh co nghiem: x>=',-b/a:4:2)
Else
Writeln('Bat phuong trinh co nghiem: x<=',-b/a:4:2)
Else
If b>=0 then
Writeln('Bat phuong trinh co vo so nghiem')
Else
writeln('Bat phuong trinh vo nghiem');
Readln;
End
