private static PolynominalElement UnknownCase(PolynominalElement element)
        {
            var multiplier = element.Multiplier.Clone();

            multiplier.Multiply(new Fraction {
                Counter = 1, Denominator = element.Power + 1
            });
            return(new PolynominalElement {
                Multiplier = multiplier, Power = element.Power + 1
            });
        }
 private static PolynominalElement NumberCase(PolynominalElement element)
 {
     return(new PolynominalElement {
         Multiplier = element.Multiplier.Clone(), Power = element.Power + 1
     });
 }