1.化簡(jiǎn) 4a-2(a-b)+(c+2b-a)
1.化簡(jiǎn) 4a-2(a-b)+(c+2b-a)
數(shù)學(xué)人氣：645 ℃時(shí)間：2020-04-18 08:49:03
優(yōu)質(zhì)解答
原式=4a-2a 2b c 2b-a=a 4b c
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