ĐA THỨC 1 BIẾN
Quiz
•
Mathematics
•
7th Grade
•
Hard
Hoàng Anh
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Đa thức nào dưới đây là đa thức một biến?
x2 + y + 1
x3 - 2x2 + 3
xy + x2 - 3
xyz - yz + 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sắp xếp 6x3 + 5x4 - 8x6 - 3x2 + 4 theo lũy thừa giảm dần của biến ta được
-8x6 + 5x4 + 6x3 - 3x2 + 4
-8x6 - 5x4 + 6x3 - 3x2 + 4
8x6 + 5x4 + 6x3 - 3x2 + 4
8x6 + 5x4 + 6x3 + 3x2 + 4
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Đa thức 7x12 - 8x10 + x11 - x5 + 6x6 + x - 10 được sắp xếp theo lũy thừa tăng dần của biến ta được:
-10 + x + x5 + 6x6 - 8x10 + x11 + 7x12
10 + x + x5 + 6x6 - 8x10 + x11 + 7x12
10 + x - x5 + 6x6 - 8x10 + x11 + 7x12
-10 + x - x5 + 6x6 - 8x10 + x11 + 7x12
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Với a, b, c là các hằng số , hệ số tự do của đa thức x2 + (a + b)x - 5a + 3b + 2 là:
5a + 3b + 2
-5a + 3b + 2
2
3b + 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ số cao nhất của đa thức 5x6 + 6x5 + x4 - 3x2 + 7 là:
6
7
4
5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho đa thức A = x4 - 4x3 + x - 3x2 + 1. Tính giá trị của A tại x = -2
A = -35
A = 53
A = 33
A = 35
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Giá trị của đa thức P(x) = x2 + 8x - 16 tại x = 4 và x = - 4 là
P(4) = 64; P(-4) = 0
P(4) = 64; P(-4) = 64
P(4) = 0 ; P(-4) = 0
P(4) = 0; P(-4) = 64
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