Toán 7 - Đa thức một biến - Củng cố
Quiz
•
Mathematics
•
7th Grade
•
Hard
Lê Linh
Used 18+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đa thức
A(x) = 3x3 + 2x2 – 8x3 + 10
sắp xếp theo chiều lũy thừa tăng dần của biến là:
2x2 – 5x3 + 10
5x3 + 10 + 2x2
10 + 2x2 – 5x3
10 – 2x2 – 5x3
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cho đa thức
D = -x3 + 2021 + x3 + 2022x2
Bậc của đa thức D là:
3
2
-20
2022
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giá trị của đa thức P(x) = x4 - 1 tại x = -2 là
-9
15
-15
9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho C(x) = 3x3 + 9x2 - 2 và D(x) = 2x3 + 1.
Kết quả của C(x) - D(x) là
x3 + 9x2 - 3
x3 + 9x2 - 1
5x3 - 9x2 - 3
5x3 + 9x2 - 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nghiệm của đa thức x2 - 16 là
4
-4
4 và -4
4 hoặc -4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nghiệm của đa thức x2 - 25
5 và -5
5 hoặc -5
25 hoặc -25
25 và -25
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho đa thức
A(x) = x20 - 2008x19 + 2008x18 - 2008x17 + ... + ... - 2008 - 1.
Giá trị của H(2007) là:
2009
2008
2007
2006
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