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ôn tập học kì 1 toán 8

Authored by Vũ Thùy Dung

Mathematics

8th Grade

Used 6+ times

ôn tập học kì 1 toán 8
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40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Trong các biểu thức sau, biểu thức nào là đơn thức nhiều biến ?

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2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho đa thức B = 4x – 5y + 6y – 9x sau khi thu gọn được đa thức:

-5x + y

5x + 11y

-5x – 11y

-5x2+y2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Giá trị của đa thức 2xy2-3x2+1 tại x = 2, y = -1 là:

0

7

-7

-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biểu thức (y+x)(y-x) bằng:

x2+2xy+y2

x2+y2

x2 - y2

y2 - x2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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-3

3

1

-1

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