兩根之和及兩根之積

兩根之和及兩根之積

9th - 12th Grade

11 Qs

quiz-placeholder

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兩根之和及兩根之積

兩根之和及兩根之積

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

Created by

Cheng Angela

Used 1+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 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

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

x2 – 3x – 8 = 0 的兩根之和及兩根之積。

兩根之和= – 3, 兩根之積= – 8

兩根之和= 3, 兩根之積= 8

兩根之和= – 3, 兩根之積= 8

兩根之和= 3, 兩根之積= – 8

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

x2 + 5x + 6 = 0 的兩根之和及兩根之積。

兩根之和= -5, 兩根之積= -6

兩根之和= -5, 兩根之積=6

兩根之和= 5, 兩根之積= -6

兩根之和= 5, 兩根之積=6

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

x2 + 2x – 8 = 0 的兩根之和及兩根之積。

兩根之和= – 2, 兩根之積= – 8

兩根之和= 2, 兩根之積= 8

兩根之和= – 2, 兩根之積= 8

兩根之和= 2, 兩根之積= – 8

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

x2 – 4x + 4 = 0 的兩根之和及兩根之積。

兩根之和= 4, 兩根之積= -4

兩根之和= -4, 兩根之積= -4

兩根之和= 0, 兩根之積= 4

兩根之和= 4, 兩根之積= 4

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

x2 + 6x + 9 = 0 的兩根之和及兩根之積。

兩根之和= -6, 兩根之積= -9

兩根之和= 6, 兩根之積= -9

兩根之和= -6, 兩根之積= 9

兩根之和= 6, 兩根之積= 9

7.

MULTIPLE CHOICE QUESTION

45 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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