IG2Ashley班周测-week13

IG2Ashley班周测-week13

8th Grade

23 Qs

quiz-placeholder

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IG2Ashley班周测-week13

IG2Ashley班周测-week13

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

榆婷 陈

Used 1+ times

FREE Resource

23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列因式分解正确的是(  )

2a²﹣4a=2(a²+a)

﹣a²+4=(a+2)(2﹣a)

a²﹣10a+25=a(a﹣10)+25

a²﹣2a+1=(a+1)²

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列各式从左到右的变形为分解因式的是(  )

x(x﹣y)=x²﹣xy

x²+2xy+1=x(x+2y)+1

(y﹣1)(y+1)=y²﹣1

x(x﹣3)+3(x﹣3)=(x+3)(x﹣3)

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

x≥﹣2

x≠﹣2

x≠0

x≠2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

不变

是原来的3倍

是原来的9倍

是原来的6倍

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列分式中是最简分式的是(  )

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

±1

1

﹣1

0

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

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