
Câu hỏi về hằng đẳng thức
Quiz
•
Mathematics
•
1st Grade
•
Practice Problem
•
Hard
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a + b)^2 là:
a^2 + b^2
a^2 + 2ab + b^2
a^2 - 2ab + b^2
a^2 + ab + b^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a - b)^2 là:
a^2 + 2ab + b^2
a^2 + b^2
a^2 - 2ab + b^2
a^2 - ab + b^2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức a^2 - b^2 được viết dưới dạng tích là:
(a + b)^2
(a + b)(a - b)
(a - b)^2
(a^2 - b^2)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a + b)^3 là:
a^3 + b^3
a^3 + 3a^2b + 3ab^2 + b^3
a^3 - 3a^2b + 3ab^2 - b^3
a^2 + 3ab + b^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a - b)^3 là:
a^3 - b^3
a^3 - 3a^2b + 3ab^2 - b^3
a^3 + 3a^2b - 3ab^2 + b^3
a^2 - ab + b^2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức a^3 + b^3 được viết dưới dạng tích là:
(a + b)(a^2 - ab + b^2)
(a + b)(a^2 + ab + b^2)
(a - b)(a^2 + ab + b^2)
(a - b)(a^2 - ab + b^2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức a^3 - b^3 được viết dưới dạng tích là:
(a - b)(a^2 + ab + b^2)
(a - b)(a^2 - ab + b^2)
(a + b)(a^2 + ab + b^2)
(a + b)(a^2 - ab + b^2)
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