program z1; var a,b,c,D:real; begin writeln('Vvedite a'); readln(a); writeln('Vvedite b'); readln(b); writeln('Vvedite c'); readln(c); D:=(b*b)-(4*a*c); writeln('Discriminant'); writeln(D:1:2); D:=(-b+sqrt(D))/(2*a); writeln('1 koren'); writeln(D:1:2); D:=(-b-sqrt(D))/(2*a); writeln('2 koren'); writeln(D:1:2); readln end.