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含有两个或两个以上字母的多项式,称为多元多项式.这类多项式的最大(小)值问题频繁出现在近年初中数学竞赛之中,如何求解呢?本文总结了思考这类问题的方法.现举例说明.
Polynomials containing two or more letters are called multivariate polynomials. The maximum (small) value problem of such polynomials frequently occurs in the junior high school math competition in recent years. How to solve it? This paper summarizes the methods for thinking about such problems. Here is an example.