题目内容
减去-7m等于4m2-7m-4的代数式是
[ ]
A.4m2+4
B.-4m2-14m+4
C.4m2-1
D.4m2-14m-4
答案:D
解析:
解析:
|
(4m2-7m-4)+(-7m)=4m2-14m-4 |
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题目内容
减去-7m等于4m2-7m-4的代数式是
[ ]
|
(4m2-7m-4)+(-7m)=4m2-14m-4 |