7a³-3【2a³b-(a²+a³)+a²】+2(3a³b-5a³+1)=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 18:32:50
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7a³-3【2a³b-(a²+a³)+a²】+2(3a³b-5a³+1)=?
7a³-3【2a³b-(a²+a³)+a²】+2(3a³b-5a³+1)=?
7a³-3【2a³b-(a²+a³)+a²】+2(3a³b-5a³+1)=?
7a³-3【2a³b-(a² a³) a²】 2(3a³b-5a³ 1)=7a³-6a³b 3a² 3a³-3a² 6a³b-10a³ 2=2
7a³-3【2a³b-(a²+a³)+a²】+2(3a³b-5a³+1)
=7a³-6a²b+3a²+3a³-3a²+6a³b-10a³+2
=7a³+3a³-10a³-6a²b+6a³b+3a²-3a²+2
=2