30分钟内回答,(5a³b)×(-3b)²+(-6ab)²×(-ab)-ab³×(-4a²)
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30分钟内回答,(5a³b)×(-3b)²+(-6ab)²×(-ab)-ab³×(-4a²)
30分钟内回答,
(5a³b)×(-3b)²+(-6ab)²×(-ab)-ab³×(-4a²)
30分钟内回答,(5a³b)×(-3b)²+(-6ab)²×(-ab)-ab³×(-4a²)
原式=5a³b×9b²-36a²b²·ab+ab³×4a²
=45a³b³-36a³b³+4a³b³
=13a³b³.
5 (a)3 b*9 (b)2 -36 (a)2 (b)2 *ab+4 (a)3 (b)3
=(a)3 (b)3*(45-36+4)=13(a)3 (b)3
()3为次方
什么意思?要化简吗?
解:
原式=45a^3b^3-36a^3b^3+4a^3b^3
=13a^3b^3
原式=45a³b³-36a³b³+4a³b³=13a³b³
应该没算错
答错了妹的
原式=5a³b×9b²+36a²b²×(-ab)+ab³×4a²=45a³b³-36a³b³+4a³b³=13a³b³