(1)计算:a(a-2)=______;???????(2)分解因式:m2-1=______.

发布时间:2020-08-05 19:32:16

(1)计算:a(a-2)=______;???????
(2)分解因式:m2-1=______.

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解:(1)a(a-2)=a2-2a;??????
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