
TOÁN 8C | TOFAS | T3 16/1/2024
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Vinh Sư Phụ
Used 1+ times
FREE Resource
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bậc của đa thức P = 2x2y – x3 + xy2 – 7.
3
2
1
7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tổng
P = 2x2y – x3 + xy2 – 7 và Q = x3 – xy2 + 2xy + 3x2y + 6.
5x2y – 1 + 2xy
5x2y – 1 - 2xy
-5x2y – 1 + 2xy
5x2y + 1 + 2xy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ số tự do của hiệu hai đa thức: P = 2x2y – x3 + xy2 – 7 và Q = x3 – xy2 + 2xy + 3x2y + 6.
11
-12
13
-13
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
M = 5x3 + 4x2y – 3x + y; N = 6xy + 3x – 2; P = 4x3 – 2x2y + 6x + 1. Hệ số chỉ chứa biến y của biểu thức M + N – P.
1
-1
-2
2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A – 6x2 + xyz = xy + 3x2 + 5xyz – 2. tìm đa thức A
xy + 9x2 + 4xyz – 2
xy + 9x2 - 4xyz – 2
-xy + 9x2 + 4xyz – 2
xy - 9x2 + 4xyz + 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(x – 2y)(x2 + 2xy + 4y2) =
x3 + 8y3
x3 – 8y3
-x3 – 8y3
-x3 + 8y3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2x – 1)2 – (2x + 1)2 =
8x
-8x
4x2 + 1
4x2 - 1
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