
ÔN TẬP CHƯƠNG III_ĐẠI SỐ 8
Authored by Thảo Vũ
Mathematics
8th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các phương trình sau, phương trình bậc nhất 1 ẩn là:
x + 3y = 0
3x + 2 = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị x = - 4 là nghiệm của phương trình:
-2,5x + 1 = 11
-2,5x = -10
3x – 8 = 0
3x – 1 = x + 7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tập nghiệm của phương trình (x + 1 )(x – 2 ) = 0 là
A. S ={1; -2}
B. S = {1; 2}
C. S = {-1; 2}
D. S = {-1; -2}
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các phương trình sau, phương trình nào tương đương với phương trình 2x + 4 = 0 ?
4x – 8 = 0
2x = 4
x 2 – 4 = 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình x(x – 1) = x có tập nghiệm là:
S = {1}
S = {0}
S = {0; 2}
S = {0; – 2}
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình x 3 + x = 0 có bao nhiêu nghiệm ?
một nghiệm
hai nghiệm
ba nghiệm
vô nghiệm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hiện tại, Mẹ hơn con 24 tuổi. Sau 2 năm nữa thì tuổi mẹ gấp 3 lần tuổi con. Tuổi con hiện tại là bao nhiêu?
20 tuổi
15 tuổi
10 tuổi
5 tuổi
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