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题目简介
计算:=2.-八年级数学
题目详情
答案
=2
=2.
故答案为:2.
思路:本题需先对二次根式进行化简,再根据二次根式的乘法法则进行计算即可求出结果.
答案 2
点评:对根式的化简一定化为最简