计算(1+m)²-(1-m)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 18:02:40
![计算(1+m)²-(1-m)²](/uploads/image/z/2446020-36-0.jpg?t=%E8%AE%A1%E7%AE%97%281%2Bm%29%26%23178%3B-%281-m%29%26%23178%3B)
计算(1+m)²-(1-m)²
计算(1+m)²-(1-m)²
计算(1+m)²-(1-m)²
答:
(1+m)²-(1-m)²
=1+2m+m²-(1-2m+m²)
=1+2m+m²-1+2m-m²
=4m
请点击下面的【选为满意回答】按钮.
写错了,不好意思
(1+m)²-(1-m)²
=(1+2m+m²)-(1-2m+m²)
=1+2m+m²-1+2m-m²
=4m
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 18:02:40
计算(1+m)²-(1-m)²
计算(1+m)²-(1-m)²
计算(1+m)²-(1-m)²
答:
(1+m)²-(1-m)²
=1+2m+m²-(1-2m+m²)
=1+2m+m²-1+2m-m²
=4m
请点击下面的【选为满意回答】按钮.
写错了,不好意思
(1+m)²-(1-m)²
=(1+2m+m²)-(1-2m+m²)
=1+2m+m²-1+2m-m²
=4m