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二次根式是在同学们学习过的算术平方根的基础上提出来的,它是研究算术平方根的性质和根式变形、根式运算的基础.通过对二次根式的概念和性质的学习,同学们将对实数的概念有更深刻的认识.通过对二次根式的加减、乘除运算的学习,同学们将对实数的简单四则运算有进一步的了解,明确整式的运算性质、公式和法则与二次根式相关内容的一致性.
The secondary root formula is based on the square root of mathematics studied by the students. It is the basis for studying the nature of the square root of the arithmetic and the fundamental deformation and rooting operations. By learning the concept and nature of the secondary roots, the students will There is a deeper understanding of the concept of real numbers. Through the learning of addition, subtraction, multiplication and division of secondary roots, the students will have a better understanding of the simple four operations of real numbers, and clearly determine the nature, formula, rule, and quadratic of the whole formula. Root-related content consistency.