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求二次根式型的代数式的值是我们常见的问题.解这类题时,需要根据题目的特点,采用适当的解题方法,才能减少运算量.
Finding the algebraic value of the quadratic type is our common problem. When solving such a problem, we need to use appropriate problem solving methods according to the characteristics of the problem to reduce the amount of computation.