一元二次方程的探索型问题是指在给定的题设条件下,判断出参数值是否存在的问题.若存在,称为探索结论肯定型;若不存在,称为探索结论否定型.解题的思路是先假设所探索的结论存在,然后经过推理运算,与题设条件符合的,给予肯定;与题设条件不符合的,则给予否定. 现选取几道中考题予以赏析. The exploratory problem of quadratic equations refers to the problem of judging whether parameter values ​​exist under given conditions. If it exists, it is called exploration conclusive; if it does not exist, it is called exploratory conclusion negation. The idea of ​​the problem is to first assume the existence of the conclusions that are explored, and then use inference calculations that are consistent with the conditions of the questions and give affirmation; if the conditions do not meet the conditions, then give negative opinions. Now select several questions in the middle to be appraised.