复合根式的化简与计算白湖一中方家宏在根式的学习中，二次根式是基础，二次根式的化简与计算尤其重要。本人在教学中常用设元法化简复合根式比较简便，现介绍如下。一、形如ＪＡ士２ＪＢ的复合Ｍ次根式的化简对于ＪＡ士２ＪＢ的化简，若我们能找到两。＿。。－＿、＿＿Ｊ... Simplification and Computation of Compound Roots Bai Huyi Zhong Fangjia Hong In the radical learning process, the secondary root formula is the basis, and the simplification and calculation of the secondary root formula are particularly important. It is relatively simple for me to simplify the complex roots of the element method in teaching. First, the complex M-rooted simplification in the form of JA Shiji 2JB is for the simplification of JA Shiji 2JB, if we can find two. _. . -_, __J...