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数学
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(-a³)²×(-a²)³ (-3a)³-(-a)·(-3a)²
人气:243 ℃ 时间:2020-04-23 09:29:10
解答
=a^6×(-a^6)×(-9a³)-9a³
=9a^15-9a³
=9(a^15-a³)(-a³)²×(-a²)³ 是一道题。(-3a)³-(-a)·(-3a)²是一道题。那你分开写啊,- -第一道=a^6×(-a^6)=-a^12第二道=-9a³-(-a)×(9a²)=-9a³+9a³=18a³
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