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F.4 Ch.2 一元二次方程(二)

Authored by 67 YI

Mathematics

10th Grade

F.4 Ch.2 一元二次方程(二)
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20 questions

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1.

MULTIPLE SELECT QUESTION

1 min • 5 pts

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

無解

重根

兩相異解

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

2

-2

0

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有兩個相異實根

有一個二重實根

沒有實根

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有兩個相異實根

有一個二重實根

沒有實根

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

x2 + 7x + 2 = 0 的兩根之和及兩根之積。

兩根之和= -7, 兩根之積=2

兩根之和= -7, 兩根之積= -2

兩根之和= 7, 兩根之積=2

兩根之和= 7, 兩根之積=- 2

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

αβ 是方程x2 + 3x – 4 = 0的根,求α + β 的值。

3

– 3

4

– 4

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