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2019年春八年级数学下册第17章一元二次方程17.1一元二次方程课件（新版）沪科版.pptx

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第17章 一元二次方程,171 一元二次方程,17.1 一元二次方程,目标突破,总结反思,第17章 一元二次方程,知识目标,知识目标,17.1 一元二次方程,目标突破,目标一 能识别一元二次方程,17.1 一元二次方程,D,17.1 一元二次方程,17.1 一元二次方程,目标二 会将一元二次方程化为一般形式，并正确地写出它的各项系数,17.1 一元二次方程,17.1 一元二次方程,17.1 一元二次方程,目标三 会利用方程根的定义求一元二次方程中未知字母的值,2,17.1 一元二次方程,17.1 一元二次方程,目标四 能根据实际问题情境列简单的一元二次方程,17.1 一元二次方程,总结反思,知识点一 一元二次方程的定义,17.1 一元二次方程,17.1 一元二次方程,知识点二 一元二次方程的一般形式,ax2bxc0(a0),ax2,a,bx,b,c,17.1 一元二次方程,知识点三 一元二次方程的根,17.1 一元二次方程,17.1 一元二次方程,

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