Ôn Tập Hằng Đẳng Thức

Quiz
•
Mathematics
•
8th Grade
•
Medium
Võ Ba
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (a + b)² = ?
(a + b)(a - b)
a² + b²
a² - 2ab + b²
a² + 2ab + b²
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Tính giá trị của hằng đẳng thức: 101² = ?
202
10002
9800
10201
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nhận diện hằng đẳng thức: (x - y)² = ?
x² - y²
(x + y)²
x² - 2xy + y²
x² + 2xy + y²
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Áp dụng hằng đẳng thức: Tính 99²
9801
10000
198
10201
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hằng đẳng thức nào sau đây là sai: (a - b)² = ?
(a - b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
(a - b)² = a² - b²
(a - b)² = 2a² - 2b²
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Tính giá trị của biểu thức: x²- y² = ? với x = 65, Y = 35
2400
3000
3500
4000
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nhận diện hằng đẳng thức: a² - b² = ?
(a - b)(a + b)
a² + b²
(a - b)(a - b)
(a - b)²
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