
LỚP 8A
Authored by nguyet minh
Mathematics
8th Grade
Used 5+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Dạng khai triển của hằng đẳng thức
A2-B2 là:
A. (A-B)((A-B)
B. (A-B)(A+B)
C. A2-2AB+B2
D. A2+2AB+B2
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Điền vào dấu ..... để có hằng đẳng thức đúng
A2 + 2AB + B2=...................
A. (A+B)3
B. (A-B)2
C. (A+B)2
D. (A-B)3
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Điền vào dấu ....... để được hằng đẳng thức đúng:
A2 - 2AB + B2 = ...............................
A. (A+B)3
B. (A-B)3
C. (A-B)2
D. (A+B)2
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Điền vào dấu ..... còn thiếu
(A+B)3 = A3 +.......+ 3AB2 + B3
A. 3A3B
B. 3AB
C. 3AB2
D. 3A2B
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Điền vào dấu ..... để được hằng đẳng thức đúng
A3 - 3A2B + 3AB2 - B3=.........................................
A. (A-B)2
B. (A-B)3
C. (A+B)3
D. (A+B)2
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Dạng khai triển của A3+B3 là:
A. (A+B)(A2-AB+B2)
B. (A-B)(A2+AB+B2)
C. (A-B)(A2-AB+B2)
D. (A+B)(A2+AB-B2)
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Câu hỏi: Điền vào dấu ....... để được hằng đẳng thức đúng
A3-B3 = (A-B)(A2 + .............+ B2)
A. 3AB
B. -AB
C. AB
D. 2AB
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