Giá trị của một biểu thức đại số
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Dũng Lê
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Giá trị của biểu thức tại x = 2 là
13
10
19
9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho biểu thức đại số . Giá trị của A tại x = -2 là
13
18
19
9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho biểu thức đại số . Giá trị của B tại x = 3, y = -4 là
16
86
-32
-28
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho và . So sánh A và B khi x = -1, y = 3.
A > B
A = B
A < B
A ≥ B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính giá trị biểu thức tại |x| = 4
B = 54
B = 70
B = 54 hoặc B = 70
B = 45 hoặc B = 70
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Giá trị của biểu thức 2x2 - 5x + 1 tại x = 2 bằng
-1
3
4
-12
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Giá trị của biểu thức 2( x - y ) + y2 , tại x = 2, y = -1 là
10
7
6
5
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