a分之a(chǎn)－b÷﹙a－a分之2ab－b²﹚等于多少
a分之a(chǎn)－b÷﹙a－a分之2ab－b²﹚等于多少
數(shù)學(xué)人氣：753 ℃時(shí)間：2020-04-14 16:34:23
優(yōu)質(zhì)解答
a分之a(chǎn)-b除以a分之a(chǎn)^2-2ab-b^2=a分之a(chǎn)-b乘以（a-b)^2分之a(chǎn)=a-b分之1
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