
Phiếu 6: bộ trợ kì hè 7-8
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
thithutrang nguyen
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rút gọn biểu thức sau: 3x(4x - 5) - 2x(4x - 4)
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rút gọn biểu thức sau:
-6x5 + 4x2 - 4x3 - 2x
- 6x5 + 2x2 + 4x3 + 2x
- 6x5 - 4x2 + 4x3 + 2x
- 6x5 - 2x2 + 4x3 - 2x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thực hiện phép tính (5x – 1). (x+ 3) – (x- 2)(5x – 4) ta có kết quả là ?
A. 28x - 3
B. 28x + 5
C. 28x - 11
D. 28x - 8
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rút gọn của biểu thức A = (2x -3). ( 4+6x) – (6 – 3x). ( 4x – 2) là ?
0
x2 + 20x
12x2 – 20x
Kết quả khác
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải phương trình (x + 3). (x+ 5) = (x+ 4). (2+ x)
A
B
C
D
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Giải phương trình 2( x + 3) + 4( 2 - 2x ) = 2( x – 2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải phương trình 4( 18- 5x) – 12( 3x – 7) = 15( 2x – 16) – 6(x+ 14)
2
3
5
6
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