配方法是中学数学中常用的方法之一,它是一种重要的解题手段,在整个中学数学教材中曾多次应用它,部编教材初中第二册P.93中首次出现,第三册的P.212的习题中有这类题目,而正式提出此法是在第四册的P.6中,以后在第五册的P.20,第六册的P.34以及高中各册中(第一册P.93,第二册P.115P.148,第三册P.58等),曾多次用到它,可见其地位的重要,而其应用则更为广泛,如化简、求值、因式分解、证恒等式、证不等式、解方程等等,在代数、三角、解析几何中都普遍地应用它,兹举例说明如下: (一)根式化简的求值: 在根式运算中,经常要将根式化简,这就要根据指数的情况将被开方式配成完全平方或完全立方 Matching method is one of the commonly used methods in middle school mathematics. It is an important problem-solving method. It has been applied many times in the whole middle school mathematics teaching materials. The first part appeared in P.93, the second part of junior high school textbook, the third There are such topics in the P.212 exercises, which are formally proposed in P.6 in Book IV, P.20 in Book V, P.34 in Book V, and in High Schools (P.93 in Volume I, P.115P.148 in Volume II, P.58 in Volume III, etc.), it has been used many times to show its importance and its application is more extensive. Jane, evaluation, factorization, card identity, card inequality, solution equations, etc., in algebra, trigonometry, analytic geometry are generally applied it, give an example as follows: (A) In root computing, it is often necessary to simplify the root, which, according to the condition of the exponent, will be assigned to a full square or complete cube