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二次项系数和系数如何求解
更新时间: 2020-10-31 00:00:00  

把左边的式子里面的字母全部换成1得到的就是系数和。

系数的意思是指在与特定的变量(或未知函数)及其导数有关的表达式或方程中,与未知数相乘的已知函数或常数。二次函数y=ax^2+bx+c,其中二次项x^2前面的系数a叫做二次项系数。

关键词: 系数 如何 求解

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