ÔN TẬP TOÁN 8 HKI
Authored by Phạm Thị Phương Dung
Mathematics
8th Grade
Used 16+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép tính (x – 4).(x + 4 ) bằng:
A. x2 - 22
B. x2 – 8
C. x2 – 16
D. x2 - 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (2x + 3y)(2x – 3y) là :
A. 4x – 9y
B. 4x2 – 9y2
C. 2x2 – 3y2
D. 4x2 + 9y2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép nhân (3 – x)(3 + x) là:
A. 3 – x2
B. x2 – 9
C. 9 – x2
D. 9 + x2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tích đa thức x3 – 3x2 + 3x - 1 thành nhân tử ta được:
A. ( x – 1 )3
B. ( x + 1 )3
C. ( 1 – x )3
D. ( 1 + x)3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tích đa thức 3x(x – y) – x + y thành nhân tử ta được kết quả là:
A. (x – y)(3x + 1)
B. (x – y)(3x – 1)
C. (x + y)(3x + 1)
D. 3x(x + y)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tích đa thức x2 – xy + 3x – 3y thành nhân tử ta được kết quả là:
A. (x – y)(x – 3)
B. (x + y)(x + 3)
C. (x – y)(x + 3)
D. (x + y)(x – 3)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kết quả của phép chia đa thức x2 - 3x -10 cho đa thức x+2 là :
A. x+5
B. x+2
C. x - 5
D. 5 - x
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