解一元二次方程2x2+5x=0的最佳解法是( ) A.因式分解法 B.开平方法 发布时间:2017-04-25 02:24 │ 来源:www.tikuol.com 题型:选择题 问题: 解一元二次方程2x2+5x=0的最佳解法是( )A.因式分解法B.开平方法C.配方法D.公式法
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