有關6ab3b的精選大全

若2a﹣3b=﹣1,則代數式4a2﹣6ab+3b的值為(  )A.﹣1            B.1     ...
問題詳情:若2a﹣3b=﹣1,則代數式4a2﹣6ab+3b的值為()A.﹣1            B.1               C.2              D.3【回答】B【分析】將代數式4a2﹣6ab+3b變形後,整體代入可得結論.【解答】解:4a2﹣6ab...
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