Kiểm Tra Hằng Đẳng Thức 1 2 3

Quiz
•
Mathematics
•
8th Grade
•
Easy
Nguyễn Ngân
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a + b)^2 bằng biểu thức nào dưới đây?
a^2 + b^2
a^2 + 2ab + b^2
a^2 - 2ab + b^2
a^2 - b^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức (a - b)^2 bằng biểu thức nào dưới đây?
a^2 + 2ab + b^2
a^2 - b^2
a^2 - 2ab + b^2
a^2 + b^2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức a^2 - b^2 bằng biểu thức nào dưới đây?
(a + b)^2
(a - b)^2
(a + b)(a - b)
a^2 + b^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức (2x + 3)^2 bằng biểu thức nào sau đây?
4x^2 + 6x + 9
4x^2 + 12x + 9
4x^2 + 9
4x^2 + 6x + 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức (5x - 1)^2 bằng biểu thức nào sau đây?
25x^2 - 10x + 1
25x^2 + 10x + 1
25x^2 - 1
5x^2 - 2x + 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của biểu thức (a + b)^2 nếu a = 3, b = 2 là:
25
10
20
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của biểu thức (x - 4)^2 nếu x = 6 là:
4
2
16
8
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