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歡迎您訪問數學考題練習:寫出一個一元二次方程,使這個方程都有一個根為0!

數學考題練習:寫出一個一元二次方程,使這個方程都有一個根為0

更新時間:2024-01-12 14:00:46作者:貝語網校

寫出一個一元二次方程,使這個方程都有一個根為0,并且二次項系數都為1:________.

試題答案

x2-x=0

試題解析

由于所寫方程都有一個根為0,常數項為0即可.按要求二次項系數必須都為1,而一次項系數為隨意一常數就行.

解答:∵方程都有一個根為0,

根據兩根之積公式可得方程中常數項必須為0,

又∵二次項系數都為1,

∴方程可寫為x2-x=0.

點評:此題為一開放性題目,答案不唯一,答案只要符合題意就行.

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