(4a³-10b³)+(—3a²+10b³)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 22:11:12
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(4a³-10b³)+(—3a²+10b³)
(4a³-10b³)+(—3a²+10b³)
(4a³-10b³)+(—3a²+10b³)
原式=4a^3-10b^3-3a^2+10b^3=4a^3-3a^2=a^2(4a-3)
4a^3-3a^2=a^2(4a-3)
=4a³﹣10b³-3a²+10b³
=﹙﹣10+10﹚b³+4a³-3a²
=4a³-3a²