二次函数问题在形式上呈现多样性和复杂性,在思维方法和解题方法上又表现为灵活性.在通解通法的基础上,若要寻求简速思维,常需要采用转化策略.巧解二次函数问题,需要我们具有一定的解题经验和洞察力.本文举例说明.一、巧设解析式解决问题在一些二次函数问题中,有时题设会给出含有待定系数的解析式和相关条件,目标是求出解析式.对于这类问题,我们不一定非 The problem of quadratic function shows diversity and complexity in form, and it shows flexibility in the way of thinking and problem-solving.On the basis of general solution, if we want to seek quick thinking, we often need to adopt conversion strategy. Solving quadratic function problems, we need to have some problem-solving experience and insight.This paper gives an example.First, the clever solution to solve the problem In some quadratic function problems, sometimes the problem will be given contains the coefficient to be determined analytic formula And the relevant conditions, the goal is to find analytic. For such issues, we are not necessarily non