Free Printable Toán 8

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Worksheets

Toán 8

Total questions: 10

Worksheet time: 10mins

Name

Class

Date

1.

Rút gọn biểu thức trên được kết quả là:

a)

-16x⁴y²-2xy³-32xy³z

b)

-16x⁴y²+2xy³+32xy³z

c)

16x⁴y²+2xy³-32xy³z

d)

16x⁴y²-2xy³+32xy³z

2.

a)

B=12

b)

B=4

c)

B=-12

d)

B=-5

3.

a)

x=-3

b)

x=1

c)

d)

4.

a)

x=1

b)

x=31

c)

x=-1

d)

x=-31

5.

Kết quả của (a+b).(a-b) là:

a)

a²+b²

b)

a²-b²

c)

a²-ab-b²

d)

2a+2b

6.

a)

x=3

b)

x=2

c)

x=1

d)

x=0

7.

a)

M=2a-8

b)

M=a+22

c)

M=3a+4

d)

M=2a-22

8.

a)

N=2

b)

N=0

c)

N=1

d)

N=9

9.

Kết quả của (a-b).(a-b) là:

a)

a²-2ab+b²

b)

a²-ab+b²

c)

a²+ab+b²

d)

a²+2ab+b²

10.

Kết quả của (a+b).(a+b) là:

a)

a²+b²

b)

a²-2ab+b²

c)

a²+2ab+b²

d)

a²+ab+b²

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