若a=2b≠0,则 a2−b2a2−ab =_1._刷题宝

题干

若a=2b≠0,则

a

2

−

b

2

a

2

−

a

b

=____.

上一题下一题 0.0难度选择题更新时间:2018-12-20 11:14:33

答案(点此获取答案解析）

1.5

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