國中數學「根式的運算」『方根的化簡』（最簡根式）的定義介紹＃squareroot #國中會考#建鴻數學＃ #maths#math
Synopsis
更正： 在影片1:20，2*3*3根號6中，看成2*3*2得到12， 應該修正成18。
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