
ÔN TẬP CHƯƠNG I-TOÁN 8
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
Huy Nguyễn
Used 2+ times
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35 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kết quả -5x3.(5x2 +2x -3) bằng:
A. 25x5 – 10x4 -15x3
B. -25x5 – 10x4 +15x3
C. -25x5 + 10x4 +15x3
D. Tất cả đều sai
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với (x - 1)2 = x - 1 thì giá trị của x sẽ là:
A. 0
B. -1
C. 1 và 2
D. 0 và 1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A. Hằng đẳng thức
B. Nhóm hạng tử
C. Kết hợp nhóm hạng tử và đặt nhân tử chung
D. Đặt nhân tử chung
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả -5x3.(5x2 +2x -3) bằng:
A. 25x5 – 10x4 -15x3
B. -25x5 – 10x4 +15x3
C. -25x5 + 10x4 +15x3
D. Tất cả đều sai
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3x.(5x2 - 2x - 1) bằng:
A. 15x3 + 6x - 3x
B. 15x3 - 6x2 - 3x
C. 15x3 + 6x2 - 3x
D. Tất cả đều sai
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Đa thức 12x - 9 - 4x2 phân tích thành nhân tử là:
A. (2x - 3).(2x + 3)
B. (3 - 2x)2
C. - (2x - 3)2
D. - (2x + 3)2
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