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1/8-1/9第四章複習

Authored by 張偉群 張偉群

Mathematics

6th - 8th Grade

Used 1+ times

1/8-1/9第四章複習
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪一個方程式為一元二次方程式?

2x-1=8

4x-3y=6x+1

5x2+2-3x

-x2+2=0

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者是一元二次方程式?

x2+3x+2

2x+y-3=0

x(x-3)=1

2x2+5=2x2+x+3

Answer explanation

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-3是下列哪一個方程式的根(解)?

x2-3x=0

3x2=0

x2+3x=0

x2+3=0

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若a×b=0,則下列敘述何者正確?

a一定等於0

b一定等於0

a=-1且b=1

a=0或b=0

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

方程式(2x+3)(3x-1)=0兩個解等於多少?

-2/3、3

2/3、-3

-3/2、1/3

-3/2、-1/3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若x2+8x=0,則x=?

-8或0

8或0

4或0

-4或0

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(x-1)2-(x-1)(2x-4)=0可以化簡為下列何式?

(x-1)(x-1-2x-4)=0

(x-1)(-x-3)=0

(x-1)(x+3)=0

(x-1)(1-2x+4)

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