题目内容

(1)计算:
(2)解方程:
(1),(2)x=3
(1).解:原式·················· 2分
      ························· 3分
(2).原方程可变形为:3(x–2)–x="0····················" 1分
整理,得 2x=6,······························· 2分
解得 x=3.·································· 3分
经检验,x=3是原方程的解.·························· 4分
(1)根据二次根式,零次幂求解
(2)先去分母,然后化简求解
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