(1) 2(√x)^2 -5√x - 12 = 0
(2) 2(2^2x) - 5(2^x) + 2 = 0
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收錄日期: 2021-05-01 11:25:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061102000051KK02818