檢視一元二次方程的原始碼

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| style="background: #FF2400" align= center|  '''<big>一元二次方程</big>'''
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中文名；一元二次方程

外文名；quadratic equation of one unknown

类型；整式方程

标准形式；ax²+bx+c=0（a≠0）

求根公式；x=(-b±√(b^2-4ac))/2a

领域；数学
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通过化简后，只含有一个未知数（一元），并且[[未知数]]的最高次数是2（二次）的整式方程，叫做'''一元二次方程'''（quadratic equation with one unknown）。<ref>[https://wenda.so.com/q/1361437345067029?src=140&q=%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B 一元二次方程的解法],360问答 , 2013年02月21日</ref>