
Kiểm Tra Toán 8 - Lần 1
Authored by suong huynh
Mathematics
8th Grade

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1. Biểu thức nào dưới đây là đơn thức?
2x3y
2x-1
x+y
x+3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2. Kết quả thu gọn đơn thức 3x.5x2 bằng
15x3
12x3
5x2
8x3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3. Kết quả khai triển hằng đẳng thức x+22 là:
x2+4x+4
x2-4x+4
x2-2x+4
x2-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4. Kết quả của phép tính x-5x+5 là:
x2-25
x2+25
x2+5
x2-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 5. Điều kiện xác định của phân thức 1+xx là:
x≠0
x≠1
x≠-1
x≠10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 6. Kết quả rút gọn phân thức 6x5y-3x3y là:
-2x2
-2x
-6x2
2x2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 7. Kết quả phép tính 4xx+1+4x+1 bằng
4
x
4x
x+1
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