Var a,b,c,x,x1,x2:real;
begin
writeln('....');
readln(a,b,c);
d:=b*b-4*a*c;
if d<0 then writeln('корней нет');<br>if d=0 then x:=-b/2/a;
if d>0 then;
begin;
x1=:(-b+sqrt(d))/2/a;
x2:=(-2-sqrt(d))/2/a;
writeln('x1=',x1:10:2);
writeln('x2=',x2:10:2);
end;
end