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二次根式涉及的概念较多,是中考的重点.单独的根式问题,多以填空题或选择题的形式出现,与分式、勾股定理、一元二次方程等知识结合的根式问题一般以计算题的形式出现.考点1二次根式的概念【考点解读】形如姨%a(a≥0)的式子叫做二次根式.
The second root involves more concepts and is the focus of the senior high school entrance examination.The root problems of single root problems are mostly filled in with blank questions or multiple choice questions, and the root problems associated with knowledge such as fractional equation, pythagorean theorem and quadratic equation are generally Calculated questions appear in the form of test sites 1 the concept of the second radical [test interpretation] aunt like a% a (a ≥ 0) formula is called the second root.