Trong các biểu thức sau, biểu thức nào là đơn thức nhiều biến ?

ôn tập học kì 1 toán 8

Quiz
•
Mathematics
•
8th Grade
•
Medium
Vũ Thùy Dung
Used 6+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cho đa thức B = 4x – 5y + 6y – 9x sau khi thu gọn được đa thức:
-5x + y
5x + 11y
-5x – 11y
-5x2+y2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Giá trị của đa thức 2xy2-3x2+1 tại x = 2, y = -1 là:
0
7
-7
-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biểu thức (y+x)(y-x) bằng:
x2+2xy+y2
x2+y2
x2 - y2
y2 - x2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-3
3
1
-1
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