...b三次方)的平方+(-2/1ab的平方的)三次方其中a=4/1,b=4._百度知...
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发布时间:2024-10-24 14:36
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热心网友
时间:2024-10-26 16:18
a三次方乘以(-b三次方)的平方+(-1/2ab的平方的)三次方
=a^3b^6-1/8a^3b^6
=7/8a^3b^6
=7/8x(1/4)^3x4^6
=7/8x4^3
=7/8x64
=56
热心网友
时间:2024-10-26 16:19
a三次方乘以(-b三次方)的平方+(-1/2ab的平方的)三次方
=a^3b^6-1/8a^3b^6
=7/8a^3b^6
=7/8x(1/4)^3x4^6
=7/8x4^3
=7/8x64
=56赞同3|评论
热心网友
时间:2024-10-26 16:21
a^3(-b^3)^2+(-ab^2/2)^3
=a^3b^6-a^3b^6/8
=7a^3b^6/8
=7b^3/8
=56