已知方程2x2-3x=8的两个根为x1,x2,那么x1+x2=______,x1 发布时间:2017-04-27 02:42 │ 来源:www.tikuol.com 题型:填空题 问题: 已知方程2x2-3x=8的两个根为x1,x2,那么x1+x2=______,x1•x2=______
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