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數學問題測驗

Authored by 羅 紹文

Mathematics

8th Grade

Used 2+ times

數學問題測驗
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

因式分解 (x−5)(x−6)−72=?

(x+3)(x+14)

(x+3)(x−14)

(x−9)(x+8)

(x+9)(x−8)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

化簡 (5x−4−6x²)−(−2x²+2+5x)=ax²+bx+c,則 a+b+c=?

-14

-10

0

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若 0 為一元二次方程式 2x²−5mx+(m−2)=0 之根,則 m=?

2

3

4

5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若 3x²+8x−a=(3x+2)(x+2),則 a=?

-4

-2

2

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個式子是不正確的?

√3x√4=2√3 

(-√2)×(-√2)=4

√18 = 3√2

√24÷√6=2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

√124 的整數部分為何?

11

12

13

14

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1

-1

2

-2

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