
Bài Kiểm Tra Toán 8
Authored by Thơm Nguyễn thị
Mathematics
8th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của biểu thức (x + 2)(x - 2) bằng:
x² - 4
x² + 4
x² - 2
x² + 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đa thức A = (x + 3)² có dạng:
x² + 6x + 9
x² - 6x + 9
x² + 3
x² - 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2x - 5)(x + 1) = ?
2x² - 3x - 5
2x² + 7x - 5
2x² - 3x + 5
2x² + 2x - 5
4.
OPEN ENDED QUESTION
3 mins • 1 pt
(x + y)(x - y) = ?
Evaluate responses using AI:
OFF
5.
OPEN ENDED QUESTION
3 mins • 1 pt
Rút gọn (x - 3)²
Evaluate responses using AI:
OFF
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Giá trị của (a - b)(a + b) khi a = 5, b = 3 là:
Evaluate responses using AI:
OFF
7.
OPEN ENDED QUESTION
3 mins • 1 pt
Đa thức (x + 1)(x² - x + 1) có bậc là:
Evaluate responses using AI:
OFF
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