General one-loop reduction in generalized Feynman parametrization form*

Recently there is an alternative reduction method proposed by Chen in [1,2]. In this paper, using the one-loop scalar integrals with propagators having higher power, we show power of improved version Chen's new which used some tricks to cancel dimension shift and terms do not want. We present explicit examples bubble, triangle, box pentagon one doubled. With these results, have completed our previous computations \cite{wang} missed tadpole coefficients.