2019年春八年级数学下册第17章一元二次方程17.3一元二次方程的根的判别式课件(新版)沪科版.pptx

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第17章 一元二次方程,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,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,17.3 一元二次方程根的判别式,目标突破,目标一 会用根的判别式判别一元二次方程根的情况,17.3 一元二次方程根的判别式,D,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,目标二 能根据根的判别式求一元二次方程中字母系数的值或取值范围,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,总结反思,知识点 一元二次方程根的判别式,17.3 一元二次方程根的判别式,不相等,相等,没有,17.3 一元二次方程根的判别式,17.3 一元二次方程根的判别式,

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