var a,x,y: real;
begin
write('Введите a,x: ');
readln(a,x);
y:=2/((a-x)*(a-x)*(a-x));
write('y = ',y);
end.
var a,x,y: real;
begin
write('Введите a,x: ');
readln(a,x);
y:=2/((a-x)*(a-x)*(a-x));
write('y = ',y);
end.