Too long return value

[SmoliakAndrii]

public INumber Multiply(INumber iNumber) 
{ //a+bi //c+di //(ac - bd) + (ad + bc)i 
ComplexNumber second = iNumber as ComplexNumber; 
return new ComplexNumber(Real * second.Real - Imaginary * second.Imaginary, Real * second.Imaginary + Imaginary * second.Real);
}

i think better change to:
ComplexNumber result = new ComplexNumber(Real * second.Real - Imaginary * second.Imaginary, Real * second.Imaginary + Imaginary * second.Real);
return result;