Paperback. Pub Date :2014-05-01 Pages: 274 Language: Chinese Publisher: People's Education Press textbook interpretation: Mathematics (Volume on the ninth grade). the full implementation of the textbook for each knowledge point to explain. and comprehensive training on a thorough analysis of key and difficult to explain the precise place. infiltrated live learning ideas. combined with the real-life closely. Selected examples are very typical. understandable and accurate analysis of the problem-solving methods and techniques for the effective guidance to clarify the thinking process. Contents: CHAPTER quadratic equation a quadratic equation 21.1 21.2 21.3 solving a quadratic equation with real problems at the end of a quadratic equation chapter to enhance the integration of comprehensive testing chapter twenty-second chapter 22.1 quadratic function quadratic function 22.2 qua...

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