
Biểu thức đại số [3]
Authored by Nam Hoàng Quốc
Mathematics
8th Grade
![Biểu thức đại số [3]](https://cf.quizizz.com/img/studentpreview.webp)
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tích của đơn thức -5x3 và đa thức 2x2 + 3x - 5 là
-10x5 - 15x4 + 25x3
10x5 - 15x4 + 25x3
-10x5 - 15x4 - 25x3
10x5 + 15x4 + 25x3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tích của đa thức 5x2 - 4x và đa thức x - 2
5x3 - 14x2 - 8x
5x3 + 14x2 + 8x
5x3 - 14x2 + 8x
x3 - 14x2 + 8x
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Giá trị biểu thức E = x(x - 4y) - (y - 5x)y với x = -4; y = -5 là
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Giá trị của biểu thức R = (2x + 3)(4 + 6x) - (6 - 3x)(4x - 2) tại x = 0 là
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gái trị của biểu thức x3 - 6x2 + 12x - 8 tại x = -8 bằng
- 1000
216
1000
- 216
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kết quả X = (x - y)3 : (x - y)
(x + y)2
- (x - y)2
(x - y)2
- (y - x)2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
P = - (x + y)
P = x + y
P = x - y
P = - (x - y)
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