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河南教育出版社出版的《漫谈αx~2+bx+c》(责任编辑张国旺、主编翟连林)是一本好书. 二次三项式αx~2+bx+c,以及与之相关联的二次函数、二次方程和一无二次不等式,是中学数学核心内容之一,中考、高考以及各级数学竞赛,无不把它们作为命题的重要内容.本书紧紧抓住αx~2+bx+c这个核心,将二次三项式、二次函数、二次方程和二次不等式揉合在一起,进行了全面系统的论述,有如下四个特点:
Henan Education Publishing House published “Talking about αx~2+bx+c” (Editor Zhang Guowang, Editor-in-Chief Qilian Li) is a good book. The secondary trinomial αx~2+bx+c, and its associated two Subfunctions, quadratic equations, and a quadratic inequalities are one of the core contents of middle school mathematics. The examinations, college entrance examinations, and mathematics competitions at all levels are all important elements of the proposition. This book firmly grasps αx~2+bx. At the core of +c, the quadric, quadratic, quadratic and quadratic inequalities are kneaded together and discussed in a comprehensive and systematic way. It has the following four characteristics: