
TOÁN 9 | ÔN TẬP | CN 29/6/2025
Authored by Vinh Sư Phụ
Mathematics
9th Grade
Used 23+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tập nghiệm của bất phương trình x² - 7x + 10 < 0 là:
2 < x < 5
x < 2 hoặc x > 5
2 ≤ x ≤ 5
x ≤ 2 hoặc x ≥ 5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-1 ≤ x < 3
x ≤ -1 hoặc x > 3
-1 < x < 3
-1 ≤ x ≤ 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm nghiệm của bất phương trình (x-1)(5-x) > 0.
x < 1 hoặc x > 5
1 ≤ x ≤ 5
1 < x < 5
vô số nghiệm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1
2
Vô số
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tập nghiệm của bất phương trình (x+3)² ≤ 4 là:
-5 ≤ x ≤ -1
-1 ≤ x ≤ 5
x ≤ -5 hoặc x ≥ -1
1 ≤ x ≤ 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bất phương trình x² + 2x ≥ 15 tương đương với:
-5 ≤ x ≤ 3
x ≥ 3
x ≤ -5
x ≤ -5 hoặc x ≥ 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x ≤ 1 hoặc 2 ≤ x ≤ 3
x ≤ 1 hoặc 2 < x ≤ 3
x ≥ 3 hoặc 1 ≤ x < 2
1 ≤ x ≤ 3
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