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第3冊單元4-2配方法與一元二次方程式的公式解第2次測驗

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10 questions

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Q1
300s
Q2
下列那一個一元二次方程式的兩根是相等的？
$5x^2-10x+1=0$
$\frac{2}{3}x^2-\frac{1}{3}x+\frac{1}{16}=0$
$\frac{1}{8}x^2-2x+8=0$
$x^2+2x-1=0$
300s
Q3
300s
Q4
120s
Q5
300s
Q6
下列那一個一元二次方程式有相異兩根？
$x^2+6x+9=0$
$2x^2+3x+4=0$
$x^2-x+1=0$
$3x^2+2x-2=0$
300s
Q7
300s
Q8
120s
Q9
120s
Q10
120s

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