@Override
    public IPolinome subtract(IPolinome polinome) {
        Polinome difference = new Polinome();

        for (int exp : this.getExponents()) {
            difference.setMonome(exp, this.getCoeficient(exp));
        }
        for (int exp : polinome.getExponents()) {
            difference.setMonome(exp, -polinome.getCoeficient(exp));
        }

        return difference;
    }