
Hằng Đẳng Thức Đáng Nhớ

Quiz
•
Mathematics
•
8th Grade
•
Hard
Niệm Hoàng
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (a + b)² = ?
a² + 2ab + b²
a² + b²
a² - 2ab + b²
(a + b)(a - b)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (a - b)² = ?
(a - b)² = 2a - 2b
(a - b)² = a² + 2ab + b²
(a - b)² = a² - b²
(a - b)² = a² - 2ab + b²
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: a² - b² = ?
(a + b)(a - b)
(a - b)(a - b)
a² + b²
(a - b)(a + b)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (a + b)(a - b) = ?
(a - b)^2
a^2 - b^2
(a + b)^2
a^2 + b^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (x + y)² = ?
x² + y²
x² - 2xy + y²
x² + 2xy + y²
2x + 2y
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (x - y)² = ?
(x - y)² = x² - y²
(x - y)² = x² + 2xy + y²
(x - y)² = x² - 2xy + y²
(x - y)² = 2x² - 2y²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hằng đẳng thức nào sau đây là đúng: (m + n)² = ?
(m + n)(m - n)
m² + 2mn + n²
m² + n²
m² - 2mn + n²
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