program lab2_task7;
var
x1, x2, a, b, c: real;
z1, z2, z3: real;
begin
x1 := 2.6;
x2 := 2.8;
a := 3;
b := 6;
z1 := sqr(x1);
z2 := sqr(x2);
z3 := x1 + b;
c := (z1 + z2 - a) / z3;
writeln('Результат c = ', c:0:4);
end.
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