配方法是大家非常熟悉的一种方法,虽然这种方法比较简单,但是它在解题中却有着十分广泛的应用,因而显得非常重要。对于许多数学问题,比如求代数式的值,解方程(组),解不等式,证明条件等式,求最大(小)值等,由于其证解方法因题而异,因而难度较大,若能对已知 The matching method is a method that we are very familiar with. Although this method is relatively simple, it has a very wide range of applications in solving problems, and therefore it is very important. For many mathematical problems, such as finding algebraic expressions, solving equations (groups), solving inequalities, proving the conditional equations, finding the maximum (small) value, etc., since the method of identification varies from question to question, it is more difficult. Known