(-2m+3)( )=4m²-9
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 12:29:41
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(-2m+3)( )=4m²-9
(-2m+3)( )=4m²-9
(-2m+3)( )=4m²-9
-2m-3
(-2m-3)
4m²-9
=(2m+3)(2m-3)
=-(2m+3)(3-2m)
-2M-3
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来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 12:29:41
(-2m+3)( )=4m²-9
(-2m+3)( )=4m²-9
(-2m+3)( )=4m²-9
-2m-3
(-2m-3)
4m²-9
=(2m+3)(2m-3)
=-(2m+3)(3-2m)
-2M-3