-2a²-2(5a²+2a)+(3a²-10a)要过程
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 22:17:30
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-2a²-2(5a²+2a)+(3a²-10a)要过程
-2a²-2(5a²+2a)+(3a²-10a)要过程
-2a²-2(5a²+2a)+(3a²-10a)要过程
原式=-2a²-10a²-4a+3a²-10a
=(2a²-10a²+3a²)-(4a+10a)
=9a²-14a